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Foundation glossary/Identity

MFA / 2FA

Companion card for the Foundation course — study the related lesson for full progress.

Foundation courseRelated lesson →

Simple explanation

Password plus another proof.

Technical explanation

Multi-factor: know / have / are.

Real-life scenario

Instagram 2FA, Google prompt, bank OTP — protect email first.

Security relevance

Stops many password-only takeovers — protect email first.

Practical example

Password + authenticator TOTP.

MFA / 2FA diagram
MFA factors — combine at least two types.

Mini quiz

Password stolen but authenticator required — attacker usually:

Related lesson

Continue in the Foundation course: open lesson →