Question

is a feature that requires two forms of identification, such as a password and possession of your phone, to log into an account. user validation two - factor authentication authorization vpn

Explanation:

Two - factor authentication (2FA) is a security process where users provide two different authentication factors to verify themselves. In the example given (password and possession of a phone), it fits the definition of 2FA. User validation is a more general term for confirming a user's identity (could be just a password). Authorization is about giving rights to access resources. A VPN (Virtual Private Network) is for creating a secure connection over a public network, not directly related to the described two - form identification feature.

Answer:

Two - factor authentication