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Two-Factor Authentication (2FA)

An authentication method requiring two different types of verification to access a system.

Understanding Two-Factor Authentication (2FA)

Two-Factor Authentication (2FA) is a security process that requires users to provide two distinct forms of identification before accessing an account or system. This enhances security by adding an extra layer of protection beyond a traditional password.


How Two-Factor Authentication Works


Something You Know

  • A password, PIN, or answer to a security question.

Something You Have

  • A smartphone, security token, or smart card that generates or receives a one-time passcode (OTP).

Something You Are (Optional - Multi-Factor Authentication)

  • Biometric verification such as fingerprint, facial recognition, or retina scan.

Benefits of Two-Factor Authentication


  • Enhances Security – Protects against password leaks and phishing attacks.

  • Mitigates Unauthorized Access – Even if a password is stolen, the attacker cannot access the account without the second factor.

  • Meets Compliance Standards – Required by many regulations like GDPR and PCI-DSS.

  • Improves User Trust – Users feel more secure when additional authentication is required.

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