V2EX two-factor authentication

Two-Factor Authentication

释义 Definition

双因素认证(2FA):一种登录/验证身份的安全机制,要求用户提供两种不同类别的证明来确认身份,常见组合是“密码(你知道的)+ 动态验证码/手机/安全密钥(你拥有的)”,有时也包含“指纹/人脸(你是谁)”。(也常说 multi-factor authentication 多因素认证。)

发音 Pronunciation (IPA)

/tu fktr θen.tke.n/

例句 Examples

I enabled two-factor authentication on my email account.
我在邮箱账户上启用了双因素认证。

Two-factor authentication reduces the risk of account takeovers, even if your password is leaked.
即使密码泄露,双因素认证也能降低账号被盗用的风险。

词源与用法 Etymology & Usage

“Two-factor” 直译为“两个因素”,源自安全领域对身份验证方式的分类:通常分为“知识因素(你知道的,如密码)”“持有因素(你拥有的,如手机/令牌)”“生物因素(你是谁,如指纹)”。“Authentication” 来自希腊语词根,含义与“使其真实、确认真伪/身份”相关。该短语在 2000 年代后随网银与互联网账户安全普及而广泛使用。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Ghost in the Wires Kevin Mitnick(回忆录/网络安全纪实中多次涉及账户验证与 2FA 等安全实践)
  • Countdown to Zero Day Kim Zetter(网络安全纪实,讨论现代安全防护与身份验证机制)
  • The Art of Deception Kevin Mitnick(社会工程学相关著作,常提及加强认证手段以降低风险)
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