UNDERSTAND 2 FACTOR AUTHENTIFICATION

2FA stands for Two-Factor Authentication. It's a security process that requires two different authentication factors to verify a user's identity before granting access to an account or system. 
Elaboration:
  • What it is:
    2FA is a form of multi-factor authentication (MFA) that adds an extra layer of security beyond just a password. 
  • How it works:
    It requires users to provide two distinct forms of identification, typically: 
    • Something you know: A password, PIN, or security question answer. 
    • Something you have: A physical device like a smartphone, security token, or a code sent via text message. 
    • Something you are: Biometric information like a fingerprint or facial recognition. 
  • Purpose:
    2FA enhances security by making it more difficult for unauthorized users to access an account, even if they have stolen a password. 
  • Examples:
    • Logging into a website with a username, password, and a code sent to your phone. 
    • Using a bank card with a PIN at an ATM. 
    • Pass code generated by an app. 

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