What is a MFA?
Multi-factor authentication (MFA) is a security authentication mechanism that requires multiple (two or more) components of predetermined evidence (factors) before being granted authorization. 2FA is a subset of multi-factor authentication (MFA), the difference is the number of factors. MFA may require more than two factors of authentication before a user can access a system. The most common examples of authentication factors used for MFA are passwords, PINs, hardware tokens, and biometrics.
There are five different types of authentication used for MFA:
1) Possession-based factor - something you have
- Hardware token
- Software token
- OTP token
- NFC badge
2) Knowledge-based factor - something you know
- Password/Passphrase
- PIN (personal identification number)
- Swipe authentication
3) Inherent-based factor - something you are
- Fingerprint biometric scan
- Facial biometric scan
- Vein biometric scan
- Voice biometric recognition
4) Location-based factor - somewhere you are
- Geo-location
- IP Address
- Local proximity
5) Behavioral-based factor - something you do
- Handwriting speed and style
- Typing speed and style
- Physical Movement dynamics
- Motion sensor detection
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