A city council mandates that staff must approve a second factor when signing in to email. Which identity protection method does that mandate describe?
Select an answer to reveal the explanation.
Short Explanation
Password plus a second proof—phone approve, authenticator, or similar—is MFA. Council is saying email is too important for password-only. That extra step is the whole point of MFA.
Full Explanation
Multifactor authentication requires additional verification beyond a password so stolen or guessed credentials are less likely to succeed. Mandating a second factor for email sign-in is a core MFA scenario in Microsoft 365 identity fundamentals. Version history, WaaS deployment rings, and billing methods do not implement sign-in multifactor controls.