Electrum is a desktop Bitcoin wallet for Windows, Mac, and Linux. German computer scientist Thomas Voegtlin created the wallet in 2011. Voegtlin estimates that about 10% of all Bitcoin transactions are sent using Electrum.

Electrum is a lightweight wallet. It connects to external servers run by other Electrum users to query blockchain data. While this setup eliminates long sync times, it is less private than full wallet clients like Bitcoin Core or Armory.

Electrum is lightweight and syncs fast, but is a feature packed Bitcoin wallet.

Cold Storage

Like Armory, Electrum can be used to create secure offline cold storage. An offline computer is used to generate the master public and private keys. The master public key is then scanned into an online computer. The online computer is used to receive payments, while the offline computer securely signs transactions.

Integration with Hardware Wallets

Electrum has integration with all major hardware wallets: Ledger Nano and HW.1, Trezor, and KeepKey. All Electrum features are available when used with any of the hardware wallets listed above.

Coin Control - Send From & Freeze

One of Electrum’s unique features is its send from ability. An HD Bitcoin wallet contains many different inputs. When it comes time to spend, it is silly to spend a 1 BTC input if only 0.01 BTC must be spent. The Electrum send from ability allows wallet owners to select which input(s) are used in transactions.

Selected inputs can also be frozen, and won’t be included automatically in any outgoing transactions.

Tor Support

Electrum is one of the few Bitcoin wallets to support Tor. While not a complete privacy solution, using Tor with Electrum allows you to block your IP address from external servers.

More Features

Electrum supports multisignature wallets and two-factor authentication. The wallet is open source and its source code is available on GitHub.

Tails Integration

Linux operating system Tails aims to provide its users privacy by automatically routing all internet traffic through Tor. In February 2015, it added Electrum–one of the few Bitcoin wallets with Tor integration–as a pre-installed application. Tails sees Bitcoin as an important part of privacy online and wanted to include a Bitcoin wallet in its software. Because Tails USB drives must be under 4 GB, a lightweight wallet like Electrum was required.

Electrum Android Wallet

Electrum launched its Android wallet in March 2016. The Android version of Electrum offers many of the same features as the desktop version: offline transaction signing using a separate phone, and the same server based verification. Electrum developer Thomas Voegtlin also claims that users will be able to buy and sell bitcoins from within the Android sometime in 2016.

Electrum bitcoin wallet

Securing Bitcoin payments since 2011,
Electrum is one of the most popular Bitcoin wallets.

Do not trust. Verify.

Electrum verifies that your transactions
are in the Bitcoin blockchain.

Cold Storage

Sign transactions from a computer that
is always offline. Broadcast them from
a machine that does not have your keys

Two Factor Authentication

Be safe from malware
Use two-factor authentication
by Electrum and Trustedcoin

Free and Decentralized

Electrum is free software.
Released under the MIT License.

Multi-Platform

Electrum has various user interfaces
It can be used on mobile, desktop
or with the command line interface.

Hardware wallets

Electrum supports hardware wallets:
Ledger, Trezor, Keepkey

Split the permission
to spend your bitcoins
between several wallets

Your private keys are encrypted and never leave your computer.

Your funds can be recovered from a secret phrase.

Instant On

Electrum is fast, because it uses servers that index the Bitcoin blockchain.

You can export your private keys and use them in other Bitcoin clients.

No Downtimes

Electrum servers are decentralized and redundant. Your wallet is never down.

Proof Checking

Electrum Wallet verifies all the transactions in your history using SPV.

Cold Storage

Keep your private keys offline, and go online with a watching-only wallet.

Split the permission to spend your coins between several wallets.

Electrum supports third-party plugins: Multisig services, Hardware wallets, etc.

Documentation

The documentation is hosted on docs.electrum.org

Documentation: http://electrum.readthedocs.org
Official announcements are made on Twitter
You can ask questions on bitcointalk.org
As well as on Reddit

Development

IRC channel: #electrum channel on Freenode
Bug reports: electrum page on GitHub
Localization: https://crowdin.net/project/electrum

Electrum Servers

Server source code: ElectrumX (new, faster implementation)
How to run your own Electrum server: Install Guide
Servers list and status (Lists only Bitcoin Electrum servers)
Statistics from Petrkr's server

About Electrum

Electrum was created by Thomas Voegtlin in November 2011.
Since then, various developers have contributed to its source code.

Bitcoin Wallet Review – Electrum

When it comes to finding the right mobile bitcoin wallet, it appears the number of choices is seemingly limitless. While it is true the Windows ecosystem has quite a few wallet solutions available, a lot of people have taken a liking to Electrum. That is only normal, as the wallet offers great innovative features for everyone to enjoy.

A Closer Look At The Electrum Bitcoin Wallet

Lightweight wallet solutions for bitcoin will always be quite popular among cryptocurrency enthusiasts. Although most desktop bitcoin wallets require users to download the entire blockchain, it is good to see Electrum offer a lightweight solution. Users can start sending and money within mere seconds of installing the software on Windows, Linux, or MacOS.

On the extra features front, Electrum is worth taking note of. It offers cold storage solutions, allowing users to store part of their funds in an offline manner. Moreover, Electrum can integrate with existing hardware solutions, including KeepKey, Trezor, and Ledger. All of the Electrum features will remain accessible while using it with any of the supported hardware wallets.

Additionally, Electrum features Tor support – as one of the only wallets to do so – and it has coin control features. By integrating Electrum with Tor, one can achieve anonymity while using the desktop wallet. One’s IP address won’t leak to the servers that the client is connecting too. Users can also be selective about what addresses they use by determining the “send form” part of the transaction with any inputs they would like. An intriguing feature that offers a quite a bit of anonymity.

Although most people know Electrum as a desktop client, the team has released their Android wallet in March of 2016. Virtually all of the same functionalities found in the desktop client have been ported to Android. Additionally, the Electrum wallet developer has been working on buying and selling bitcoin from within the wallet itself.

Last but not least, Electrum enables multi-signature support, which is a must-have security feature these days. Moreover, Electrum is not tied to a centralized server, which means there will be no downtime by any means. Electrum is one of the most popular and well-established wallet solutions for desktop users and is well worth checking out.

If you liked this article, follow us on Twitter @themerklenews and make sure to subscribe to our newsletter to receive the latest bitcoin, cryptocurrency, and technology news.

About The Author

JP Buntinx is a FinTech and Bitcoin enthusiast living in Belgium. His passion for finance and technology made him one of the world's leading freelance Bitcoin writers, and he aims to achieve the same level of respect in the FinTech sector.

Electrum seems to be an excellent wallet. But does it implent BIP32 protocol? Also it doesn’t provide support for test-network, right?

Great wallet! Never had any problems with it. Extremely user friendly and safe.

Better Bitcoin Is Diamond!

A simple, secure way to send and receive bitcoin diamond.

Electrum Bitcoin Diamond Wallet

ELECTRUM BITCOIN DIAMOND WALLET IS AN SPV вЂ˜LIGHTWEIGHTвЂ™ WALLET FOR BITCOIN DIAMOND

For each Bitcoin (BTC) that you owned before the вЂ˜Bitcoin DiamondвЂ™ fork on 24th of November 2017, you are now able to claim a total of 10 Bitcoin Diamond coins (BCD). The fork happened at the predetermined height of block 495866. From that moment on, Bitcoin Diamond continued as a separate, independent chain. The total supply of BCD will be 210 million.

The Bitcoin Diamond hard fork aims to improve on the original Bitcoin, by providing a better X13 mining algorithm (optimal for GPU cards) and is focused creating faster and cheaper transactions.

The Electrum wallet is a safe and secure вЂ˜lightweight clientвЂ™. It is using SPV technology to provide the user with a high level of security without having to download the entire blockchain history.

In order to claim your Bitcoin Diamond (BCD) coins, simply download the latest version of the Electrum вЂ˜Bitcoin DiamondвЂ™ Wallet and follow the instructions.

Which is the Best Bitcoin Wallet?

This guide will help you to find the best Bitcoin wallet for YOU!

There's no "one size fits all" Bitcoin wallet. Wallets come on different platforms with different features.

If you want the best possible wallet, keep reading.

Select Your Preferences

Wallet Finder

Just enter your wallet preferences and we'll show you the best wallet for your needs.

Recommendations

Ledger Nano S Buy Learn More

The Ledger Nano S is the cheapest hardware wallet. Hardware wallets secure your coins by storing them offline and away from hackers. The Ledger Nano S supports more coins than any other hardware wallet, like bitcoin, litecoin, ether and more. It can be used with any desktop computer or Android device.

TREZOR Buy Learn More

TREZOR launched in August 2014 as the first Bitcoin hardware wallet, offering secure bitcoin storage plus the ability to spend with the convenience of a hot wallet. TREZOR is a small, thumb-sized device.

Samourai Wallet

Samourai is 100% the best available Android wallet. It has the most features, the best privacy and its developers are constantly working to add the latest Bitcoin features to the wallet. Samourai Wallet has been around for more than 3 years and its code is fully open source.

Coinomi

Coinomi is the most popular multi-coin cryptocurrency wallet for iOS and Android. It supports over 100+ coins including bitcoin, litecoin, ether, dash and more.

BRD

BRD is a mobile wallet for both Android and iOS. Its clean interface makes it easy to use for beginners. It supports bitcoin and ether.

Electrum

Electrum wallet is an easy to use desktop wallet for Mac, Windows and Linux. It's east and fast to setup so you can start sending and receiving bitcoins right away.

Exodus

Exodus is the most popular multi-coin cryptocurrency wallet. It supports Bitcoin, ether, litecoin, dash, Golem and many more.

What is a Bitcoin Wallet?

A Bitcoin wallet is the first step to using Bitcoin.

A “wallet” is basically the Bitcoin equivalent of a bank account. It allows you to receive bitcoins, store them, and then send them to others.

You can think of a wallet as your personal interface to the Bitcoin network, similar to how your online bank account is an interface to the regular monetary system.

Bitcoin wallets contain private keys; secret codes that allow you to spend your bitcoins.

In reality, it’s not bitcoins that need to be stored and secured, but the private keys that give you access to them.

A Bitcoin wallet is simply an app, website, or device that manages Bitcoin private keys for you.

This guide will show you how to create a bitcoin wallet and pick the best one.

Types of Bitcoin Wallets

Let's discuss the types of bitcoin wallets and why you might want to use one kind over another.

Hardware Wallets

A hardware wallet is a physical electronic device, built for the sole purpose of securing bitcoins.

The core innovation is that the hardware wallet must be connected to your computer, phone, or tablet before bitcoins may be spent.

The three most popular and best Bitcoin hardware wallets are:

Hardware wallets are a good choice if you’re serious about security and convenient, reliable Bitcoin storage.

Bitcoin hardware wallets keep private keys separate from vulnerable, internet-connected devices.

Your all-important private keys are maintained in a secure offline environment on the hardware wallet, fully protected even should the device be plugged into a malware-infected computer.

As bitcoins are digital, cyber-criminals could, potentially, target your computer’s “software wallet” and steal them by accessing your private key.

Generating and storing private keys offline using a hardware wallet ensures that hackers have no way to reach your bitcoins.

Hackers would have to steal the hardware wallet itself, but even then, it can be protected with a PIN code.

Don’t worry about your hardware wallet getting stolen, lost or damaged either; so long as you create a secret backup code, you can always retrieve your bitcoins.

Think of a hardware wallet like your own underground steel vault. If you own a significant amount of bitcoin, you should strongly consider getting one!

Why are hardware wallets good?

Easiest way to securely store bitcoins
Easy to backup and secure
Less margin for error; setup is easy even for less technical users

Why are hardware wallets bad?

They're not free!

Hot Wallets

Hot wallets are Bitcoin wallets that run on internet connected devices like a computer, mobile phone, or tablet.

Private keys are secret codes. Because hot wallets generate your private keys on an internet connected device, these private keys can’t be considered 100% secure.

Think of a hot wallet like your wallet today: you use it to store some cash, but not your life savings. Hot wallets are great if you make frequent payments, but not a good choice for the secure storage of bitcoins.

Why are hot wallets good?

Easiest way to store small amounts of bitcoin
Convenient; spending and receiving payments is easy and fast
Some hot wallets allow access to funds across multiple devices

Why are hot wallets bad?

Not safe for the secure storage of large amounts of bitcoins

Which Wallet is Best for You?

Investing or saving? Then a hardware wallet will keep your coins safe.

Otherwise, a software wallet will send and receive bitcoins just fine. Best of all, software wallets are free.

Each wallet has pros and cons, and different wallets are built to solve different problems.

Here is a video that may help:

Some wallets may be geared towards security, while some wallets may be more focused on privacy.

Your specific needs should determine the wallet you use, as there is no “best bitcoin wallet”.

Below, we've listed wallets you can buy or download. We suggest using the wallets listed or doing research before buying or downloading any wallet.

Each day, new Bitcoin scam wallets are added to the Google Play Store and Apple app store that are designed to steal peoples' bitcoins.

We only list wallets that have published and open-sourced their code.

Hardware Wallets: Keep Your Coins Safe

Hardware wallets aren't free.

But the price can be worth it if you own a significant amount of bitcoins. A hardware wallet will protect a few hundred in Bitcoin just as effectively as a few million.

How Hardware Wallets Work

Hardware wallets are secure, offline devices. They store your private keys offline so they can't be hacked.

This means you can even use one on a malware infected computer.

Why A Hardware Wallet with a Screen is Important

In the table below, you'll notice we show which hardware wallets have screens.

Screens provide extra security by verifying and displaying important wallet details. Since the hardware wallet is nearly impossible to hack, its screen is more trustworthy than data displayed on your computer.

Bitcoin Hardware Wallet Comparison

Check the table below for a quick comparison. Note:

Best Bitcoin Hardware Wallet Overviews

Ledger Nano S Buy Learn More

The Ledger Nano S is the cheapest of the three hardware wallets with a screen; it costs about $95. Ledger, one of the most well-known Bitcoin security companies, released the device in August 2016.

TREZOR Buy Learn More

KeepKey Buy Learn More

KeepKey was released in September 2015 and was the second hardware Bitcoin wallet to offer a screen. The KeepKey's larger screen gives it some extra security features that the Nano S and Trezor lack.

Hot Wallets

Just a quick refresher:

Hot wallets are Bitcoin wallets that run on internet connected devices like a computer, mobile phone, or tablet. As hot wallets generate private keys on an internet connected device, these private keys can’t be considered 100% secure.

Online Bitcoin Wallets (Web Wallets)

Web wallets store your private keys online, where they are encrypted with a user-selected password. Although they offer the lowest level of security, online bitcoin wallets have the advantage of being accessible from any internet connected device.

GreenAddress

GreenAddress is a multi-signature Bitcoin wallet available on the web, desktop, Android, and iOS. GreenAddress is compatible with hardware wallets like TREZOR, Ledger Nano, and the HW.1.

“Multi-signature” in this context means that the site requires a manual confirmation from you for your coins to be moved; this greatly improves security.

Android Bitcoin Wallets

There is a large selection of Android wallets. Since Bitcoin wallets were originally banned by Apple, developers spent much of their time developing for Android.

Samourai Wallet

Mycelium

Mycelium is the most popular Bitcoin wallet on Android. It's very easy to use for sending and receiving payments. Backing up your wallet is also simple, since Mycelium makes it very clear with setup and backup instructions.

breadwallet

breadwallet, the great iPhone Bitcoin wallet, recently released an Android wallet. It offers the user control of private keys, an easy to use interface, and passcode support.

Edge

Edge is an easy to use Bitcoin wallet for iPhone and Android. Its familiar login feature makes using the app a breeze for people new to bitcoin. The wallet also creates automatic backups, so you don't have to worry about the technicalities of performing manual wallet backups.

GreenBits

GreenBits is the native Android version of GreenAddress. It’s a multi-signature wallet that also supports hardware wallets like TREZOR and Ledger.

Bitcoin Wallet

Bitcoin Wallet, or “Schildbach Wallet”, was the first mobile Bitcoin wallet. Bitcoin Wallet is more secure than most mobile Bitcoin wallets, because it connects directly to the Bitcoin network. Bitcoin Wallet has a simple interface and just the right amount of features, making it a great wallet and a great educational tool for Bitcoin beginners.

iOS and iPhone Bitcoin Wallets

Apple banned Bitcoin wallets from the App Store in February 2014, but reversed its decision a few months later. Luckily, there are now plenty of options for iOS users.

breadwallet

We consider breadwallet, along with Copay (below), as the best bitcoin wallet for iPhone. It’s open source and gives the user full control over their private keys. It also has a clean interface which makes the sending and receiving of bitcoins a pleasurable and super-simple process.

Edge

Desktop Wallets

Desktop wallets are downloaded and installed on your computer. If privacy is your main concern, the Bitcoin core wallet is a good option since it does not rely on third parties for data.

Electrum

Electrum is a light weight Bitcoin wallet for Mac, Linux, and Windows. Electrum was created in November 2011. The main features of Electrum are: support for hardware wallets (such as TREZOR, Ledger Nano and KeepKey), and secure Bitcoin storage using an offline computer. Electrum is a good option for both beginners and advanced users.

Bitcoin Banks: $1 Billion Lost in Hacks

One last thing to keep in mind when it comes to bitcoin wallets is that there is a difference between a wallet and a bank. Some Bitcoin users view Coinbase as a Bitcoin wallet, but companies like this operate much more like banks.

The private keys are what users need to protect to safely use the Bitcoin network without getting robbed. When you hand someone else control over your private keys, you are essentially making a deposit at that financial institution – much like a deposit at any bank.

Don't store coins on exchanges! Bitcoin users have lost over $1 billion worth of bitcoins in exchange hacks and scams. Control your own private keys.

This is not to say that bitcoin banks are inherently bad. Companies like Coinbase have done wonders for bringing more users into the ecosystem. It is simply important to remember that whoever controls the private keys controls the bitcoin attached to those keys.

A misunderstanding of this point has led to hundreds of millions of US dollars being lost in the past, so it’s important to understand this critical difference in how Bitcoin private keys can be stored.

Understanding how bitcoin wallets work is an important aspect of safely using this new technology. Bitcoin is still in its early years of development and wallets will become much more user-friendly in time.

In the near future, certain devices may eventually come with pre-installed wallets that interact with the blockchain without the user’s knowledge.

For now, it’s vital to keep in mind that the private keys are what you need to protect if you want to keep your bitcoin safe from hackers, user error, and other possible issues.

Theft and Scams

No matter which wallet you choose, remember:

Your bitcoins are only safe if the private key was generated securely, remains a secret, and--most importantly--is controlled only by YOU!

Here are two examples where users got ripped off by leaving bitcoins in the care of a third party:

To avoid theft, scams, and any other loss of funds, follow these three basic principles:

Generate your private keys in a secure, offline environment. (Except if using trivial amounts, in which cases keys may be created in a hot wallet).
Create backups of your private keys. This helps to protect against the loss of your bitcoins due to hard drive failure or some other problem or accident. Ideally you should have a duplicate set of backups kept off-site to protect against the possibility of fire, robbery, etc.
Encrypt wallets to provide additional security. This helps prevent the physical theft of your funds in the event that your device or hardware wallet is stolen.

Securing your bitcoins properly is the most important step for any Bitcoin user.

With Bitcoin you have the privilege - but also the responsibility - to safeguard your own money. There have been countless scams related to Bitcoin that could have been prevented had people not entrusted others with their bitcoins.

It’s a good rule of thumb to never trust anyone else with your money.

Bonus Chapter

Bitcoin Wallet Frequently Asked Questions

Bitcoin wallets. What are they?

Bitcoin Wallets let us send, receive and store Bitcoin amounts all the way down to the Satoshi unit.

Wallets secure funds by guarding our private keys. These private keys act as the proof of ownership for our Bitcoins. As such, a Bitcoin wallet is like a key to your safe deposit box on the Blockchain.

What is a private key?

Private keys emerged as a way to communicate securely through insecure communication channels.

Historically, before the advent of public key cryptography, the greatest cryptographic weakness was the inability to communicate the ‘key’ that makes sense of encrypted messages. As a solution, the use of two keys (public and private) entered the picture.

It’s a nifty little trick.

Keys come in pairs. The public key is used to encrypt the message whereas the private key decrypts the message. The only person with the private key is you. Everyone else is free to have your public key. As a result, everyone can send you encrypted messages without having to agree on a key beforehand. They simply use your public key and you untangle the gibberish by using your private key.

Why should I care about private keys?

At the end of the day, all of this can go over your head without much danger. Just remember that it’s good to know what you’re dealing with. Bitcoin wallets make use of a fundamental cryptographic principle that we use for things ranging from https for websites or sending anonymous tips to Wikileaks. Most importantly, by understanding private keys you’ll have a much easier familiarizing yourself with Cold Storage wallets.

What is a Bitcoin address?

A Bitcoin address is like an account number, just better. The address denotes which wallet the coins should be sent to. Like a bank account number, where the difference lies in the wallets having multiple addresses. These can be customized by including payment request information such as an amount and a date of expiration.

What should I know about addresses?

Bitcoin wallet addresses are case sensitive, usually have 34 characters of numbers and lowercase letters, start with either a 1 or a 3, and never use 0, O, l and I to make every character in the address as clear as possible. That’s a lot to take in. But don’t worry. What they consist of is largely irrelevant to you. Just know they’re a string of characters that denote a destination on the Bitcoin Blockchain.

How do I generate a Bitcoin address for my wallet?

How to generate a new Bitcoin Address varies between wallets. Some manage your addresses for you. Others give you full control. As with many other Bitcoin technologies, the option to dirty your own hands is always open.

If you do end up taking the easier route, just press a button to generate a new address for your wallet.

Some wallets, like Electrum, allow you choose in how many blocks your transaction should be confirmed. The faster you want your payment to go through, the more you will have to pay miners for confirming your activity. We find here another difference between Bitcoin wallets and Bank accounts. Given the right wallet, the control and oversight that we have over our transactions is far more extensive than that of the traditional banking system.

How do I fund a Bitcoin Wallet?

First, acquire some Bitcoins. Go through an exchange in your country, ask an acquaintance to share, or use Buybitcoinworldwide.com if you want as seamless of an experience as possible. The purchased coins can then be sent to your wallet by specifying one of its addresses.

Some wallets, particularly online ones, also let you buy coins. Keep in mind that these come with larger exchange margins which are best left alone.

Are Bitcoins safe?

Is Bitcoin a safe way to store value digitally? Are we wise to save our coins on our computer? It’s true that online wallets are necessarily more dangerous than offline wallets. However, even offline wallets can be breached, meaning that security in the Bitcoin world depends largely on following good practices. Just like you would avoid flailing your bills about in a dangerous place, you should make sure to keep your passwords and keys as safe as possible.

How do I secure my Wallet?

Secure your computer
Restrict unsupervised access. Set a strong password and close all ports and maintain a strict firewall.
Frequently change address. Use a different address for every transaction.
Multiple Signatures (Multi-sig). Multiple private keys to deter breaches.

Where are Bitcoins stored?

Bitcoins simply consist of a string of data. That’s why they can be stored anywhere. You could paint Bitcoin on a wall with your blood. Nobody does that though. Hopefully.

Instead, we store BTC on computers because we need them handy to trade. After all, we need to be connected to the internet to send value from one wallet to another over the Blockchain.

How do I open a Bitcoin account?

To some readers this might seem like a weird question. Truth is, people coming from a financial or business background are likely to expect Bitcoin to be a direct alternative to our current financial system. This is not the case.

You don’t need a Bitcoin account. There is no such thing really. You just need a wallet. The only accounts you might encounter are online wallets that are separated into various accounts via a user system.

How do I know which wallet is best for me?

Let’s be honest. It’s unreasonable to expect anyone else to make this decision for you. After all, your preference depends entirely on your personality and needs. So just be honest with yourself.

Frankly, you shouldn’t need anything complicated if you’re using the wallet for simple internet expenses or as a way to save money.

If, however, you’re planning to run a Bitcoin centered business make sure to use advanced wallets that support automated mass payments.

Any common mistakes to be careful of?

First of all, don’t rest your money in an exchange wallet. Keep your coins in an environment where you have complete control.

Secondly, don’t keep all of your coins in one place. You’ll be crushed if you lose access to a wallet with all of your funds.

Thirdly, double check the target address. Bitcoin transactions cannot be reversed, so don’t lose your coins forever to a stranger!

Last of all, use trusted online wallets (if at all). Don’t just trust anyone with your money. Make sure that the online wallet provider has a reputation of upholding the highest possible security standards.

Security Risks with Hardware Wallets

Hardware wallets are more secure than any other software wallet, like one that runs on your Android or iOS device, or desktop. However, hardware wallets have some unique security risks to be aware of.

Tampering of the Device

We always recommend to order directly from the hardware seller. This is because someone can buy a hardware wallet, tamper with it, and sell it used. They could program it to steal any bitcoins or add a back door.

Most hardware wallets add some special kind of tape on the packaging to try to make any tampering more noticeable. This is another reason we recommend only ordering from the hardware wallet company, and not from a website like eBay.

Bad Random Number Generator

Bitcoin private keys are based on cryptography. Random number generators, also called RNGs, are used to create the private keys that secure bitcoins.

If the random number generator is not random enough, that means someone else can recreate the private key of the hardware wallet easier. This attack has happened in the past with blockchain.info, a web wallet. Over 300 BTC were lost because blockchain.info did not use good RNG, so a hacker was able to generate the private keys again and steal coins.

One way to help prevent this is to use the hardware wallet’s custom 25th word. TREZOR, for example, allows you to add a 25th word to the 24 word seed. This means that you can technically add your own RNG to the computer generated RNG to ensure your private key will be truly based on good RNG.

What happens if the hardware wallet company goes out of business?

All hardware wallets listed above work with other wallets. So, if the hardware wallet company goes out of business you will still be able to use your wallet with a different wallet like Electrum.

Let’s say you use TREZOR with TREZOR’s myTREZOR wallet. TREZOR goes out of business and no longer supports myTREZOR wallet and it gets shut down.

You could, in just a few minutes, download Electrum on your computer. Once installed, you’d setup your TREZOR and all of your transaction history and balance would get imported and be exactly the same. This is because Electrum will use the same 24-word seed you generated with TREZOR on setup.

Which wallets can be used for each device?

Ledger Nano S, KeepKey and TREZOR all work with:

Mycelium (Android version only)
Electrum for Mac, Windows and Linux
Multibit HD
GreenAddress

Do these hardware wallets work for Ethereum?

Yes, all of these wallets work with Ethereum, Litecoin and many other coins.

TREZOR and Ledger both have blog posts explaining their integrations with various Ethereum wallets.

The hardware wallet tells me to write down the 24 word seed on paper.

Should I take a picture of the seed with my phone as a backup?

The seeds generated by hardware wallets are meant to be written down only. By taking a picture of your seed with an internet connected phone, you put your entire wallet on a device that is connected to the internet and easier for hackers to get into. Please do not do this!

Why do the hardware wallets have buttons?

The buttons are used to confirm transactions. In order to send a transaction, you must physically press or hold buttons on the devices. This is a security feature. If a hacker were to access the hardware wallet somehow, the hacker still would not be able to send a TX without physical access to the buttons. Read more about this in TREZOR’s security philosophy.

Do hardware wallets work with Coinbase?

One of the most frequent questions we get asked is how Coinbase works with hardware wallets.

It’s a trick question!

Coinbase does not work directly with hardware wallet. You should, however, send bitcoins from Coinbase directly to your hardware wallet once you buy. Never store bitcoins on Coinbase or any other exchange for long periods of time.

Too many people in the past have lost money from hacks like Bitfinex and Mt. Gox.

So, yes, use a hardware wallet in conjunction with Coinbase. Buy on Coinbase, then send to hardware wallet.

Also, what we said above goes for ALL exchanges. Use Bitstamp? Cool! Once you buy bitcoins on Stamp, send the coins to your hardware wallet. The same goes for Kraken, Poloniex, or any other exchange or service that holds your coins!

What other kinds of wallets can I use?

Other wallet types are hot wallets. This means they are wallets run on an internet connected computer.

Android wallets, iOS wallets and desktop wallets are all examples of this.

How many backups of my seed should I create?

We recommend keeping at least two backups of your seed in multiple locations.

You can also laminate your seed to protect against water damage or any other damage.

Keeping your seeds in fire proof safes can help protect in the event that the storage location is burned down.

Another option is to put your seed into metal manually using stamps, or using cryptosteel.

What happens if someone finds my 24 word seed?

Unless you’re using a 25th word, someone who finds your 24 word seed can sweep your entire wallet.

Coinbase is a web wallet with a simple design and a number of very useful features that make it excellent for beginners. You can send and receive bitcoins via email and buy and sell bitcoins directly from Coinbase.

Once you get the hang of things, it is better to move your coins off of Coinbase and into a wallet mentioned above like the Ledger Nano S . Coinbase is a good place to buy bitcoins and learn how it works, but not a good solution for long term storage.

A full-featured Android app enables access to all account functions on the go. Coinbase’s founders have a proven startup track record and have raised money from very prominent venture capitalists. This gives Coinbase a level of legitimacy unparalleled in the Bitcoin space. They are also one of the only large Bitcoin companies to never suffer a major hack. Click here to sign up.

Electrum is a software wallet that enables you to set up a strong level of security very quickly. During the simple installation process, you are given a twelve word phrase that will allow you to recover all of your bitcoins in the event that your computer fails. Your wallet is also encrypted by default which helps protect your coins against hackers. Electrum is available for Windows, OSX, and Linux and is our recommended software wallet for beginners. Click here to download the right version for your operating system.

Bitcoin Wallet for Android

For those looking for mobility and security, we recommend the simply-titled Bitcoin Wallet mobile app. There is a version for both Android and BlackBerry OS . It is a software wallet, so you retain complete control over your bitcoins. It also works well with QR codes and NFC, making transferring coins to someone else’s phone easier than writing a check. Be sure to backup your wallet (with the included “Backup Wallet” feature) or you risk losing all your coins the next time you get too close to a pool.

Other Wallets

We also recommend a few other wallets, but not for the beginning Bitcoin user. If you are up for more of a challenge, Armory is a good choice for those requiring the highest possible security, and the original Bitcoin-Qt client is also trusted and worth learning how to use.

Now that you have a wallet set up, it’s time to learn how to get some bitcoins .

Electrum's focus is speed and simplicity, with low resource usage. It uses remote servers that handle the most complicated parts of the Bitcoin system, and it allows you to recover your wallet from a secret phrase.

Control over your money

This wallet gives you full control over your bitcoins. This means no third party can freeze or lose your funds. You are however still responsible for securing and backing up your wallet.

This wallet uses SPV and random servers from a list. This means little trust in third parties is required when verifying payments. However, it is not as secure as a full node like Bitcoin Core.

The developers of this wallet publish the source code for the client. This means any developer in the world can audit the code. However, you still need to trust developers of this wallet when installing or updating the final software because it was not built deterministically like Bitcoin Core.

This wallet can be used from insecure environments. However, this service requires two-factor authentication. This means access to multiple devices or accounts is required to steal your bitcoins.

Prevents spying on your payments

This wallet makes it harder to spy on your balance and payments by rotating addresses. You should still take care to use a new Bitcoin address each time you request payment.

Discloses information to a third party

This wallet uses central servers which are able to associate your payments together and log your IP address.

Tor can be used

This wallet lets you setup and use Tor as a proxy to prevent attackers or Internet service providers from associating your payments with your IP address.

Full control over fees

This wallet gives you full control over fees. This means that this wallet allows changing the fees after funds are sent using RBF or CPFP. This wallet also provides fee suggestions based on current network conditions so that your transactions are confirmed in a timely manner without paying more than you have to.

Electrum Wallet Review – Best Desktop Wallet for Bitcoins

Electrum Bitcoin Wallet

Editor Rating

User Ratings

2FA, Multi sig and Add-ons support
No lock on private key, can export your electrum private key on other bitcoin wallets
Offline and Watch only wallet support
Standalone or portable wallet also avilable
Lightweight or Cross platform, supported Linux, Mac, Android

You can loss all your fund if your computer harddisk will be crash, take your seed or private key backup on another trusted place like encrypted disk or paper.

Electrum Wallet, without a doubt, tops the charts whenever there’s any discussion pertinent to the best Bitcoin wallets.

We’ve mentioned time and again its security features, compatibility and everything else are just in sync with what you wish to see in any Bitcoin wallet you entrust your funds with. This is the only one best wallet service which offers full control on your fund and transaction fee. because I also prefer this wallet for my fund holding.

I already tried many another waller service, but my experience is very bad because if you are trying any other wallet these days than at the time of transaction check your fee. Yes, I am talking about the fee. Some Bitcoins wallets taking more 10 times high as the normal fee. let’s start reading for further information.

What is Electrum Wallet?

Let’s start with the basics, Electrum is a free Bitcoin wallet which can be installed on your desktops, laptops and mobile devices.

Around 2011, it was the most popular Bitcoin wallet, accounting to roughly 10% of the world’s total Bitcoin transactions

Being a Bitcoin wallet, it let’s you store funds in a secure environment, as well as facilitates the sending and receiving of funds.

Electrum Features:

Now let’s take a deeper look at what exactly Electrum has in store for you and if it’s worth your time and Bitcoins!

1). Easy Installation:

Electrum has been designed keeping the “first-timers” in mind. So you do not need to have any prior experience with Electrum, or any wallet for that matter.

Simply download the wallet from this link and run the installer.

Name your wallet for ease of recognition, and then simply select the “type” of wallet you wish to create. If you’re not sure, simply go with Standard wallet, and if you’re an advanced user you can go with the other options as well.

You’ll be provided with a “ Seed ” on the next page. Consider this your “ master password ”. It’s made up of 12 random words and can be used to recover your account. Note that the sequence of the words is of paramount importance as well.

Write these words somewhere safe before clicking on the next button. On the next page you’re asked to enter the “ seed words ” exactly as they appeared, so just type them on the space provided and click on next.

That’s just about it, you’ll be asked to create a password for your Electrum wallet, and done! You can now log in to your Electrum wallet using the password you just created.

2). Easy User Interface

Once you fire up Electrum, the dashboard that greets you is pretty simple and straight-forward.

The top-bar is designated for the options such as File / Tools etc just like any of your other everyday software.

Followed by three tabs by default, namely History, Send and Receive. These are pretty straightforward as well, History gives you access to all your previous transactions, and the send and receives tabs are used to send or receive funds.

The bottom-right screen holds four icons, and they can be used as a one-click access to:

Password-Change option.
Preference
Seed
And network condition (access to status, server, no. of connected nodes etc.)

3). Options Breakdown

The top-bar is divided into five options:

The Files and Help options do not hold any “ unique ” options you’ve never seen before, so excluding them, we would take into account the other options available and explain them out to you.

The Wallet option holds all the important options you might need for your Electrum wallet. Starting with the Password option which simply let’s you change your account password.

The second option in the list is “ Seed ”, remember it’s the “ master-phrase ” we were shown while installation? Yeah in case you lost your backup note of the phrase, you can access the seed from this option again and write it down somewhere safe.

Then comes the Private-keys option, it let’s you sweep as well as export your private keys to a csv file which you might need for several reasons.

The next options aren’t as important or advanced as the ones discussed above, they just let you organize your wallet better by letting you add contacts, label them, check history etc.

The View tab simply let’s you customize your tabs according to your preferences. You can add or remove the tabs from the top-bar using the view options.

The first option under the tools option is “ Preferences ”. It can also be accessed by clicking on the second icon on the bottom-right screen of Electrum wallet.

The Preference options let you change the fee-structure, appearance of the wallet, SSL certificates and so on.

Then comes the “ Network ” option, which isn’t of “ use ” to you if you aren’t an advanced user, but it does relay important information related to your network condition and nodes.

The third option on the list is “ Plugins ”, and it lets you add third-party plugins such as GreenAddress Instant, E-mail etc. You can turn these on or off with a simple click of the mouse.

There’s the “ Sign/Verify message ” option next, it’s an advanced option which let’s you “ Sign ” a message, this sign can be used to verify your ownership of the wallet and your transactions.

The next option in line is that of “ Encrypt /Decrypt ” message, it’s a simple yet advanced feature which let’s you Encrypt your messages using a Public key, and decrypt them using your private key.

The next option says “ Pay to Many ”, it’s an advanced feature which let’s you BULK PAY Bitcoins to more than one accounts in a single go.

Just enter the transactions in the following format: Address, amount

And the last option under the tools button is simply a “ load transaction ” option which let’s you load transactions from a Blockchain, QR code, text file or file!

4). Security

Now that you’ve been acquainted the interface and the wallet let’s have a glimpse of some of the more hard-core features that Electrum offers, specifically those related to its security.

Offline Private Keys: The Private keys for your wallet are stored on your computer locally eliminating any threat to them being “stolen” online.
Recovery Phrase: The 12-word recovery-seed comes in handy in case you lose your primary account password. Most other Bitcoin wallets either do not provide a recovery option at all, or it’s not as simple as this.
Fast: Electrum doesn’t need a “ load-time ” or any other delay of that sort, that’s so because it uses the same servers as the Bitcoin Blockchain indexers use!
No Lock-In: As we’ve already discussed, you’re not bound to be using Electrum specifically in order to use your private key, it supports full export of your keys and they can be used with other Bitcoin clients as well.
MultiSig Supported: As you might have noticed during installation, Electrum supports Multi-sig Wallets as well, multi-sig basically means the spending rights of your funds is not centralized just to one system or person, but is instead split between different parties. This way, even if there’s a breach into one of the accounts or systems, the funds can’t be spent without all the signees agreeing to the transaction.
Watch-Only Wallet: One of the best features about Electrum wallet is that it supports a Watch-only wallet. It comes in handy when you’re using a public Wi-fi or unsecure connection to log in to your wallet. These wallets let you check transaction status, available balance and other data but these wallets do not have “modification” rights, no funds can be transferred, neither can any changes be made. So even if these wallets are compromised, the hackers would be just “ spectators ” hence keeping your funds safe.
SPV Verification: It’s the abbreviation for “ Simplified Payment Verification ”. What it means for you is that each transaction using Electrum is verified using the SPV verification hence prevents double-spending and other such fraudulent activities. Also that it minimizes the trust required in other third-parties to validate a transaction to the bare minimum, hence improving your reliability.
2-Factor Authentication: Electrum wallet uses TrustedCoin’s remote servers to validate log-in attempts if you choose to use a 2-Factor authentication enabled wallet. In that case, 1 out of 3 keys would be kept on the remote server, and you’ll be able to login only by authenticating yourself via Google Authenticator.
100% Uptime: Electrum provides for redundant servers which guarantee a 100% uptime no matter what.

5). Portable Wallet Service

Another best feature that you can get only with electrum wallet, you can use this wallet like as standalone or portable. if you want to run you wallet service independently also want to control use anytime anywhere then this is the alternative way for you.

Only you need to install the portable version in you Pendrive, Portable hard disk, cloud Store or encrypted device. and access that wallet from anywhere.

Note:

This process can prove harmful for you, If you will access your wallet from any malware affected desktop that’s why only use your wallet from trusted network or trusted computer.

Final Words about Electrum Wallet:

So that’s all as far as this Electrum wallet review goes folks, I tried my best to paint a clear picture of all the important options and features available with Electrum.

As far as my final verdict goes, it’s my personal favorite, specifically for the reason that it allows me to create a cold-storage on an offline computer and only transport the watch-only wallet to online environments which is a great way to eliminate any security threats.

Apart from that, Electrum offers just about every single feature you might imagine or wish to have with a Bitcoin wallet, and then some.

The security features are top-notch, user-features like exporting of Private keys, encrypting of messages etc. also deliver what’s promised, so in other words there isn’t a feature that any other wallet out there might have which Electrum will cheat you out of.

Do let me know your take on Electrum wallet, or if you’ve got any questions, doubts, or problems as well feel free to use the commentbox.

US Search Mobile Web

Welcome to the Yahoo Search forum! We’d love to hear your ideas on how to improve Yahoo Search.

The Yahoo product feedback forum now requires a valid Yahoo ID and password to participate.

You are now required to sign-in using your Yahoo email account in order to provide us with feedback and to submit votes and comments to existing ideas. If you do not have a Yahoo ID or the password to your Yahoo ID, please sign-up for a new account.

If you have a valid Yahoo ID and password, follow these steps if you would like to remove your posts, comments, votes, and/or profile from the Yahoo product feedback forum.

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Post a new idea…

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My feedback

Improve your services

Your search engine does not find any satisfactory results for searches. It is too weak. Also, the server of bing is often off

I created a yahoo/email account long ago but I lost access to it; can y'all delete all my yahoo/yahoo account except for my newest YaAccount

I want all my lost access yahoo account 'delete'; Requesting supporter for these old account deletion; 'except' my Newest yahoo account this Account don't delete! Because I don't want it interfering my online 'gamble' /games/business/data/ Activity , because the computer/security program might 'scure' my Information and detect theres other account; then secure online activities/ business securing from my suspicion because of my other account existing will make the security program be 'Suspicious' until I'm 'secure'; and if I'm gambling online 'Depositing' then I need those account 'delete' because the insecurity 'Suspicioun' will program the casino game 'Programs' securities' to be 'secure' then it'll be 'unfair' gaming and I'll lose because of the insecurity can be a 'Excuse'. Hope y'all understand my explanation!

chithidio@Yahoo.com

i dont know what happened but i can not search anything.

Golf handicap tracker, why can't I get to it?

Why do I get redirected on pc and mobile device?

Rahyaftco@yahoo.com

RYAN RAHSAD BELL literally means

Question on a link

In the search for Anaïs Nin, one of the first few links shows a picture of a man. Why? Since Nin is a woman, I can’t figure out why. Can you show some reason for this? Who is he? If you click on the picture a group of pictures of Nin and no mention of that man. Is it an error?

Repair the Yahoo Search App.

Yahoo Search App from the Google Play Store on my Samsung Galaxy S8+ phone stopped working on May 18, 2018.

I went to the Yahoo Troubleshooting page but the article that said to do a certain 8 steps to fix the problem with Yahoo Services not working and how to fix the problem. Of course they didn't work.

I contacted Samsung thru their Samsung Tutor app on my phone. I gave their Technican access to my phone to see if there was a problem with my phone that stopped the Yahoo Search App from working. He went to Yahoo and I signed in so he could try to fix the Yahoo Search App not working. He also used another phone, installed the app from the Google Play Store to see if the app would do any kind of search thru the app. The Yahoo Search App just wasn't working.

I also had At&t try to help me because I have UVERSE for my internet service. My internet was working perfectly. Their Technical Support team member checked the Yahoo Search App and it wouldn't work for him either.

We can go to www.yahoo.com and search for any topic or website. It's just the Yahoo Search App that won't allow anyone to do web searches at all.

I let Google know that the Yahoo Search App installed from their Google Play Store had completely stopped working on May 18, 2018.

I told them that Yahoo has made sure that their Yahoo members can't contact them about anything.

I noticed that right after I accepted the agreement that said Oath had joined with Verizon I started having the problem with the Yahoo Search App.
No matter what I search for or website thru the Yahoo Search App it says the following after I searched for
www.att.com.

WEBPAGE NOT AVAILABLE
This webpage at gttp://r.search.yahoo.com/_ylt=A0geJGq8BbkrgALEMMITE5jylu=X3oDMTEzcTjdWsyBGNvbG8DYmyxBHBvcwMxBHZ0aWQDTkFQUEMwxzEEc2VjA3NylRo=10/Ru=https%3a%2f%2fwww.att.att.com%2f/Rk=2/Es=plkGNRAB61_XKqFjTEN7J8cXA-
could not be loaded because:
net::ERR_CLEARTEXT_NOT_PERMITTED

I tried to search for things like www.homedepot.com. The same thing happened. It would say WEBPAGE NOT AVAILABLE. The only thing that changed were all the upper and lower case letters, numbers and symbols.
Then it would again say
could not be loaded because:
net::ERR_CLEARTEXT_NOT_PERMITTED

This is the same thing that happened when Samsung and At&t tried to do any kind of searches thru the Yahoo Search App.

Yahoo needs to fix the problem with their app.

Yahoo Search App from the Google Play Store on my Samsung Galaxy S8+ phone stopped working on May 18, 2018.

I went to the Yahoo Troubleshooting page but the article that said to do a certain 8 steps to fix the problem with Yahoo Services not working and how to fix the problem. Of course they didn't work.

Electrum is lightweight and syncs fast, but is a feature packed Bitcoin wallet.

Cold Storage

Integration with Hardware Wallets

Electrum has integration with all major hardware wallets: Ledger Nano and HW.1, Trezor, and KeepKey. All Electrum features are available when used with any of the hardware wallets listed above.

Coin Control - Send From & Freeze

Selected inputs can also be frozen, and won’t be included automatically in any outgoing transactions.

Tor Support

Electrum is one of the few Bitcoin wallets to support Tor. While not a complete privacy solution, using Tor with Electrum allows you to block your IP address from external servers.

More Features

Electrum supports multisignature wallets and two-factor authentication. The wallet is open source and its source code is available on GitHub.

Tails Integration

Electrum Android Wallet

Bitcoin Private Electrum Wallet - How to install the Wallet

Главная > Wallets > Tutorials > Bitcoin Private Electrum Wallet - How to install the Wallet

Step 1 - Visit the Bitcoin Private Website

The first step for installing the wallet is downloading the wallet. The Electrum wallet is available for Windows, Mac and Linux and will be available at the Bitcoin Private website:

Step 2 - Download the wallet

You will then be forwarded to our Github, where you will find the latest version of the Bitcoin Private wallet.

The Bitcoin Private Electrum Wallet is available for Windows, Mac and Linux.

Simply click the link for the platform you are using to download the wallet.

For this tutorial, we are using the Mac wallet as example. Installation instructions for Window and Linux may slightly vary.

Step 3 - Start with Installing the Wallet

After downloading the wallet and clicking the icon, you may be prompted with a message similar to the one displayed below.

This is a message which is brought up when apps are being downloaded which are not on the App Store. To go ahead, you may right-click (or control-click) the app and press Open. You will then be able to go ahead with the installation.

Step 4 - Choose how your wallet will connect

This step defines the server that Electrum will connect to. For beginning users, we recommend you to go with Auto Connect, as it will automatically connect to the best available server.

Step 5 - Create a name for your wallet

This step defines the name that your wallet will have. For the purpose of this tutorial, we will go with the default setting: default_wallet.

Step 6 - Choose the type of wallet

For this tutorial, we are setting up a Standard Wallet.

Note: You will be able to import your BTC / ZCL Private Keys at a later stage of this tutorial.

Step 7 - Choose if you want to create a new seed or want to import existing keys.

We are creating a new seed, which means that we are setting up a new wallet with new passwords seeds and keys.

Note: Your seeds / private keys for BTC / ZCL do not work for this step. First, you will have to set up a wallet for Bitcoin Private.

Step 8 - Write down your seed

You will then be presented with you seed. This is a unique combination of 12 words which grants access to your wallet. It is absolutely vital that you keep this information private: DO NOT SHARE THIS SEED.

We recommend you to write this on a piece of paper instead of storing it electronically. Without this seed, you may not be able to access your wallet.

PS: No worries, the seed which is displayed here is from an unused and empty wallet, purely set up for the purposes of this tutorial.

Step 9 - Confirm your seed

In the next step, write down your seed to confirm.

Step 10 - Choose a password

We strongly recommend our users to set up a password which will be used to access your wallet.

In addition, we recommend you to encrypt the wallet file.

Congratulations. You have now installed the Bitcoin Private Electrum Wallet.

In later tutorials, we will explain you how to import your BTC and/or ZCL Private Keys, in order to access your BTCP!

суббота, 23 июня 2018 г.

electrum_bitcoin_wallet

Cold Storage

Integration with Hardware Wallets

Coin Control - Send From & Freeze

Tor Support

More Features

Tails Integration

Electrum Android Wallet

Electrum bitcoin wallet

Do not trust. Verify.

Cold Storage

Two Factor Authentication

Free and Decentralized

Multi-Platform

Hardware wallets

Instant On

No Downtimes

Proof Checking

Cold Storage

Documentation

Development

Electrum Servers

About Electrum

Bitcoin Wallet Review – Electrum

A Closer Look At The Electrum Bitcoin Wallet

About The Author

Better Bitcoin Is Diamond!

Electrum Bitcoin Diamond Wallet

ELECTRUM BITCOIN DIAMOND WALLET IS AN SPV вЂ˜LIGHTWEIGHTвЂ™ WALLET FOR BITCOIN DIAMOND

Which is the Best Bitcoin Wallet?

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суббота, 23 июня 2018 г.