Glossary: Identity and Access Management
MFA (multifactor authentication)
Also written: multifactor authentication, MFA
Sign-in that needs proofs from two or more different factor categories, such as Priya's password (know) plus a code from her phone (have). A password plus a security question is two steps but only one factor.
Where the book teaches it
Related terms
authentication factortwo-step sign-inOTP (one-time password)passkey