Many of you must have heard about two-factor authentication. This is for the additional security of any online account. There are many types of two-factor authentication. Tells you about two-factor authentication and its benefits.

Along with this, you will also be told how you can activate two-factor authentication for popular online accounts. 

Two factor authentication is known by many names. Multi-Factor Authentication, Two-Step Verification, 2FA or Dual Factor Authentication. 

This is actually a kind of security process that after activating you can be somewhat sure about your account security. Under this process, apart from the password of the account, you have to provide a second proof to access your account. This can be any kind of proof. 

Known as 2 step verification and two-factor athentication (2FA). This is a security system in which 2 steps are used to login to an account or to unlock, that is, 2 different methods are used to login to an account.

For example, if you have turned on 2 step verification for Gmail, then it can not be logged on Gmail only with the help of password. It is necessary to verify whatever method is selected for its 2 step authentication process. 

Get codes via text message- You can add your personal phone number to 2FA and from this, whenever we log in to the account, a verification code will come in our phone via text message, it can be entered only after entering the account. . 

Want a phone call instead? Adding this feature will give the code through call which can be logged after verifying. 

Backup phone numbers - If for some reason you do not have a phone number network, then you can take the code in another number. 

No connection, no problem - Google Authenticator app that works for Android and iPhone without any connection. 

Keep your account even more secure - You can use Security Key to make 2 step authentication 100% secure, it can be logged into account only after it is installed in the system.

Backup codes - After verifying authetication once, you can print or save it and use it.

Register your computers - If you have a personal computer, then you can setup for it that you do not need 2 step authentication for that computer only.

For example, if you do some kind of transaction, OTP is sent to the mobile along with card and PIN to complete it. Only after entering it, your transaction is successful. 

Many times you keep the password of any of your online accounts such as Facebook or Gmail, which can make you feel close. In such a situation, if you have kept a two-factor authentication active, it will be beneficial. 

If anyone knows the password of your account, then you cannot open the account without other steps. 

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What are the methods of two-factor authentication? 

Phone Number - The most common way is by phone number. In the account, you can set your phone number for two-factor authentication. After entering the password, the code will appear on the phone. Only after entering it, the account can be accessed. 

Security key is also available in the market for two-factor authentication. You can use it in any email service or social media that supports physical security. After entering the password, you will have to install security, only then you will get access to the account. 

App-Based Authentication - Google Authenticator is an app that you can use for multi-factor authentication. You can add Facebook, Insta, and other accounts by installing it in your phone. 

Whenever you log in to these accounts from another device, after the password, you have to copy the code from the Authenticator app and enter it. 

Apart from all these, the option of email-based authentication and recovery code is also available. Under the recovery code, you are asked to save code. In case of forgetting the password, you can use it to access the account.