MFA (Multi-Factor Authentication)
A security method requiring two or more forms of verification before granting access to an account.
What is MFA (Multi-Factor Authentication)?
What is MFA (Multi-Factor Authentication)?
Multi-factor authentication requires users to provide multiple forms of identity verification: something they know (password), something they have (phone, hardware key), or something they are (fingerprint, face). MFA dramatically reduces the risk of unauthorized access, even if passwords are compromised. Common MFA methods include authenticator apps (TOTP codes), SMS codes, hardware security keys (FIDO2/WebAuthn), and push notifications. MFA should be enforced for all administrative and sensitive access.
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