How to Turn On 2FA for Blockchain

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If you don't have a Blockchain. Once you have done that, blockchain 2 factor authentication into your Account settings. On the left side of the page, under Account Informationyou will see Personal.

Click on it, then enter an email address, an alias, and verify your phone number. Blockchain 2 factor authentication alias allows you to login with something memorable, rather than the long default string of characters.

You can use something simple like your full blockchain 2 factor authentication. Under Personalyou will see General. Click on it, and set an inactivity logout time I use 30 minutesand set your Default Fee Policy to normal, or generous. Under Generalyou will see Display. Click on it, and set your local currency. You can change the other settings if you like too. Under Displayyou will see Notifications. Click on it, and change the settings to whatever you want. Under Notificationsyou will see Passwords.

Write down your mnemonic; keep it safe. Now choose a second password. Make it something you will blockchain 2 factor authentication forget. Write it down; keep it safe. Also, fill in a password hint. Should you leave your browser open while you're still logged in, the secondary password you entered will prevent someone from sending coins out of your account. It blockchain 2 factor authentication this by prompting you for a second password anytime you try to send coins.

Congratulations, your account is now much safer; however, there is one more security measure you can take to make your account virtually unhackable.

It is called Two Factor Authentication. Two-factor authentication is a security process in which the user provides two means of identification, one of which is typically a physical token, such as a card, and the other of which is typically something memorized, such as a security code. In this context, the two factors involved are sometimes spoken of as something you have and something you know.

A common example of two-factor authentication is a bank card: Moving on, under Passwordsyou will see Security. Click on it, and then select an option from the drop down menu. We highly recommend either using a Yubikey, or Google Authenticator. Because Google Authenticator is the quickest and easiest to set up, I'm going to use it as an example. Once you blockchain 2 factor authentication done this, go back to your computer, and in the Security settings, choose Google Authenticator from the drop down menu.

A large QR code will be displayed. Open the Google Authenticator app on your smartphone and choose Scan a barcode. Then scan the barcode displayed on your computer's screen.

After scanning the QR code, the app will display a 6 digit code that changes every 30 seconds. Enter this into the box below the QR code on your computer screen. Congratulations, because an attacker would need to know your main password, your secondary password, AND have access to your smartphone in order to enter your authenticator code, your account is now virtually unhackable!

ATM s What is bitcoin? Frequently Asked Questions What is Bitcoin? How do I set up my first Bitcoin wallet? How do I import a paper wallet? How do I secure my wallet? Two-factor Authentication Two-factor authentication is a security process in which the user provides two means of identification, one of which is typically a physical token, such as a card, and the other of which is typically something memorized, such as a blockchain 2 factor authentication code.

Google Authenticator Because Google Authenticator is the quickest and easiest to set up, I'm going to use it as an example. ATM What is Bitcoin?

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Like in real life, your wallet must be secured. Bitcoin makes it possible to transfer value anywhere in a very easy way and it allows you to be in control of your money. Such great features also come with great security concerns. At the same time, Bitcoin can provide very high levels of security if used correctly.

Always remember that it is your responsibility to adopt good practices in order to protect your money. You should be wary of any service designed to store your money online. Many exchanges and online wallets suffered from security breaches in the past and such services generally still do not provide enough insurance and security to be used to store money like a bank.

Accordingly, you might want to use other types of Bitcoin wallets. Otherwise, you should choose such services very carefully. Additionally, using two-factor authentication is recommended.

A Bitcoin wallet is like a wallet with cash. If you wouldn't keep a thousand dollars in your pocket, you might want to have the same consideration for your Bitcoin wallet. In general, it is a good practice to keep only small amounts of bitcoins on your computer, mobile, or server for everyday uses and to keep the remaining part of your funds in a safer environment.

Stored in a safe place, a backup of your wallet can protect you against computer failures and many human mistakes. It can also allow you to recover your wallet after your mobile or computer was stolen if you keep your wallet encrypted.

Some wallets use many hidden private keys internally. If you only have a backup of the private keys for your visible Bitcoin addresses, you might not be able to recover a great part of your funds with your backup. Any backup that is stored online is highly vulnerable to theft. Even a computer that is connected to the Internet is vulnerable to malicious software. As such, encrypting any backup that is exposed to the network is a good security practice.

Single points of failure are bad for security. If your backup is not dependent of a single location, it is less likely that any bad event will prevent you to recover your wallet.

You need to backup your wallet on a regular basis to make sure that all recent Bitcoin change addresses and all new Bitcoin addresses you created are included in your backup. However, all applications will be soon using wallets that only need to be backed up once.

Encrypting your wallet or your smartphone allows you to set a password for anyone trying to withdraw any funds. This helps protect against thieves, though it cannot protect against keylogging hardware or software.

You should make sure you never forget the password or your funds will be permanently lost. Unlike your bank, there are very limited password recovery options with Bitcoin. In fact, you should be able to remember your password even after many years without using it. In doubt, you might want to keep a paper copy of your password in a safe place like a vault. Any password that contains only letters or recognizable words can be considered very weak and easy to break.

A strong password must contain letters, numbers, punctuation marks and must be at least 16 characters long. The most secure passwords are those generated by programs designed specifically for that purpose. Strong passwords are usually harder to remember, so you should take care in memorizing it.

An offline wallet, also known as cold storage, provides the highest level of security for savings. It involves storing a wallet in a secured place that is not connected to the network.

When done properly, it can offer a very good protection against computer vulnerabilities. Using an offline wallet in conjunction with backups and encryption is also a good practice. Here is an overview of some approaches. This approach involves having two computers sharing some parts of the same wallet. The first one must be disconnected from any network. It is the only one that holds the entire wallet and is able to sign transactions.

The second computer is connected to the network and only has a watching wallet that can only create unsigned transactions. This way, you can securely issue new transactions with the following steps. Because the computer that is connected to the network cannot sign transactions, it cannot be used to withdraw any funds if it is compromised.

Armory can be used to do offline transaction signature. Hardware wallets are the best balance between very high security and ease of use. These are little devices that are designed from the root to be a wallet and nothing else. No software can be installed on them, making them very secure against computer vulnerabilities and online thieves.

Because they can allow backup, you can recover your funds if you lose the device. Using the latest version of your Bitcoin software allows you to receive important stability and security fixes.

Updates can prevent problems of various severity, include new useful features and help keep your wallet safe. Installing updates for all other software on your computer or mobile is also important to keep your wallet environment safer. Bitcoin includes a multi-signature feature that allows a transaction to require multiple independent approvals to be spent.

This can be used by an organization to give its members access to its treasury while only allowing a withdrawal if 3 of 5 members sign the transaction.

Some web wallets also provide multi-signature wallets, allowing the user to keep control over their money while preventing a thief from stealing funds by compromising a single device or server. Your bitcoins can be lost forever if you don't have a backup plan for your peers and family. If the location of your wallets or your passwords are not known by anyone when you are gone, there is no hope that your funds will ever be recovered.

Taking a bit of time on these matters can make a huge difference. Securing your wallet Like in real life, your wallet must be secured. Be careful with online services You should be wary of any service designed to store your money online. Small amounts for everyday uses A Bitcoin wallet is like a wallet with cash.

Backup your wallet Stored in a safe place, a backup of your wallet can protect you against computer failures and many human mistakes. Backup your entire wallet Some wallets use many hidden private keys internally.

Encrypt online backups Any backup that is stored online is highly vulnerable to theft. Use many secure locations Single points of failure are bad for security. Make regular backups You need to backup your wallet on a regular basis to make sure that all recent Bitcoin change addresses and all new Bitcoin addresses you created are included in your backup.

Never forget your password You should make sure you never forget the password or your funds will be permanently lost. Use a strong password Any password that contains only letters or recognizable words can be considered very weak and easy to break. Offline transaction signing This approach involves having two computers sharing some parts of the same wallet.

Create a new transaction on the online computer and save it on an USB key. Sign the transaction with the offline computer. Send the signed transaction with the online computer. Hardware wallets Hardware wallets are the best balance between very high security and ease of use.