How Does 2 Factor Authentication Work?
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Two-factor authentication (2FA) is a security system that requires two separate pieces of information in order to verify a user’s identity. The two pieces of information are typically something the user knows (such as a username and password) and something the user has (such as an authentication code sent to their mobile phone). By requiring two pieces of information, two-factor authentication makes it much harder for a hacker to gain access to an account.