IT Security第 64 / 100 题
What is multi-factor authentication (MFA)?
a.Using the same password on multiple sites
b.Encrypting a hard drive twice
c.Logging in from multiple devices
d.Requiring two or more independent forms of verification to prove identity
解析
MFA requires two or more distinct factors to authenticate, such as something you know (password), something you have (a phone or token), or something you are (a fingerprint). This greatly increases security because a stolen password alone is not enough. MFA is a strong defense against account compromise.
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