英文原文:two-factor authentication (2FA)
Two-factor authentication (2FA), often referred to as two-step verification, is a security process in which the user provides two authentication factors to verify they are who they say they are. 2FA can be contrasted with single-factor authentication (SFA), a security process in which the user provides only one factor – typically a password.
双因素身份认证(2FA),经常被认为是两步骤认证(two-step verification)。它是一个安全处理措施,用户需要提供2个认证因素来证明他们的身份。2FA可以和单因素认证(single-factor authentication)进行一个对比,单因素认证只需要提供一个认证因素,典例的是密码认证
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