Tools / Cyber Security Interview Questions
What is Multi-Factor Authentication (MFA)?
Multi-Factor Authentication requires a user to prove their identity using two or more independent factors before granting access, rather than relying on a password alone.
- Something you know, like a password or PIN
- Something you have, like a phone or hardware token
- Something you are, like a fingerprint or face scan
Because a stolen password alone isn't enough to log in, MFA significantly reduces the risk of account takeover from credential theft or phishing.
Common implementations include one-time codes from an authenticator app, push notifications to a registered device, and hardware security keys such as YubiKeys.
How many independent factor categories does MFA rely on at minimum?
Which of these is an example of 'something you have'?
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