Multifactor authentication (MFA)
Also called: MFA, two-factor authentication, 2FA
Course: AP® Cybersecurity Shows up in: Unit 1: Introduction to Security
A login that requires extra proof of identity, such as a one-time code, in addition to a password.
Appears in the course and exam description (CED): 1.2.C.31.4.B.2
Why it matters in Unit 1
A stolen or guessed password, or a cloned voice, is not enough on its own when MFA is on.
Example
After typing your password, you also approve the login on your phone.
Learn it properly, with a checkpoint 1.2 Suspicious Website Logins