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.