Home NCSC Guides Enabling multi-factor authentication

Enabling multi-factor authentication

Published:

Aug 14, 2025

Updated:

AUG 20, 2025

Who can use this content?

Individuals

Multi-Factor Authentication adds a second layer of security to your accounts by requiring more than just a password to log in.
Even if attackers steal your password, they can’t access your account without the additional verification step.

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Common multi-factor authentication methods

Authenticator apps

Application that generates a time-based one-time code.

SMS or email codes

A code is sent to your phone or email.

Security key

Physical device that plugs into a computer or uses near field communication (NFC) which is wireless protocols.

Biometric verification

Use your fingerprint, facial recognition or voice recognition.