+**2FA** (Two-factor authentication) strengthens [Digital security](/wiki/Digital_security) by requiring two distinct forms of verification. Beyond a [password](/wiki/Password), it often involves a code from a trusted device or a biometric scan, making unauthorized access far more difficult. This extra step helps protect online accounts from compromise.
+## See also
+- [Authentication](/wiki/Authentication)
+- [Cybersecurity](/wiki/Cybersecurity)
+- [Biometrics](/wiki/Biometrics)
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