What is two-factor authentication (2FA)?

Two-factor authentication (2FA) is a security process that requires users to provide two different types of identification before gaining access to an account or system. Typically, this involves something the user knows, like a password, and something the user has, such as a code sent to their phone or generated by an authentication app. This extra layer of security makes it much harder for unauthorized individuals to gain access, even if they know your password. 2FA is widely recommended to protect sensitive data and accounts from cyber threats.