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2. Authentication - Wikipedia

   en.wikipedia.org/wiki/Authentication

   Authentication (from Greek: αὐθεντικός authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of proving an assertion, such as the identity of a computer system user. In contrast with identification, the act of indicating a person or thing's identity, authentication is the process of verifying that ...

3. Electronic authentication - Wikipedia

   en.wikipedia.org/wiki/Electronic_authentication

   Electronic authentication. Electronic authentication is the process of establishing confidence in user identities electronically presented to an information system. [1] Digital authentication, or e-authentication, may be used synonymously when referring to the authentication process that confirms or certifies a person's identity and works.

4. Multi-factor authentication - Wikipedia

   en.wikipedia.org/wiki/Multi-factor_authentication

   Multi-factor authentication (MFA; two-factor authentication, or 2FA, along with similar terms) is an electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence (or factors) to an authentication mechanism.

5. Authentication protocol - Wikipedia

   en.wikipedia.org/wiki/Authentication_protocol

   Authentication protocol. An authentication protocol is a type of computer communications protocol or cryptographic protocol specifically designed for transfer of authentication data between two entities. It allows the receiving entity to authenticate the connecting entity (e.g. Client connecting to a Server) as well as authenticate itself to ...

6. AAA (computer security) - Wikipedia

   en.wikipedia.org/wiki/AAA_(computer_security)

   AAA (computer security) AAA refers to Authentication (to prove identity), Authorization (to give permission) and Accounting (to log an audit trail). It is a framework used to control and track access within a computer network. Common network protocols providing this functionality include TACACS+, RADIUS, [1] and Diameter.

7. Add or disable 2-step verification for extra security - AOL Help

   help.aol.com/articles/2-step-verification...

   Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and how to turn off 2-step verification if you need to.

8. Security token - Wikipedia

   en.wikipedia.org/wiki/Security_token

   A security token is a peripheral device used to gain access to an electronically restricted resource. The token is used in addition to, or in place of, a password. [1] Examples of security tokens include wireless keycards used to open locked doors, a banking token used as a digital authenticator for signing in to online banking, or signing a ...

9. Logical security - Wikipedia

   en.wikipedia.org/wiki/Logical_security

   Authentication is the process used by a computer program, computer, or network to attempt to confirm the identity of a user. Blind credentials (anonymous users) have no identity, but are allowed to enter the system.