Multi-factor authentication

RSA SecurID token, an example of a disconnected token generator.

Multi-factor authentication (MFA) is a method of computer access control in which a user is only granted access after successfully presenting several separate pieces of evidence to an authentication mechanism - typically at least two of the following categories: knowledge (something they know); possession (something they have), and inherence (something they are).

单词	Soft token
释义	Soft token 英语百科 Multi-factor authentication Multi-factor authentication (MFA) is a method of computer access control in which a user is only granted access after successfully presenting several separate pieces of evidence to an authentication mechanism - typically at least two of the following categories: knowledge (something they know); possession (something they have), and inherence (something they are).
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Soft token

Multi-factor authentication