Your school uses "Multi-Factor Authentication" (MFA). This means after you type your password, you also have to enter a code sent to your teacher's phone. Why is this much safer than just using a password?

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• A Because it gives you two chances to remember your password.
• B Because even if a hacker steals your password, they still can't get in without that second secret code.
• C Because it makes the computer screen look cooler.
• D Because it proves you own a smartphone.

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