+**Two Factor** describes a method of verifying a user's identity by requiring two distinct forms of evidence. It strengthens digital [Security](/wiki/security) beyond a single factor, often combining something known, like a password, with something possessed or inherent, improving [Authentication](/wiki/authentication) against unauthorized access.
+## See also
+- [Password](/wiki/password)
+- [Biometrics](/wiki/biometrics)
+- [Privacy](/wiki/privacy)
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