With U2F, the exchange of information that is provided by the secure key is able to prevent this type of attack and even alert the user to the fact that the login screen was fake. Even when a text message is sent to the phone or an application like Google Authenticator is used, the fake login screen can simply capture that information from the user and pass it on to log in. Theoretically, a hacker could reproduce the login page of a bank or a service like Google and get the user to put their username and password in. U2F was designed to provide a physical device that wasn’t susceptible to hackers using “ man in the middle attacks”. The process is faster than using an SMS text message or special authenticator app and it is potentially more secure. Logging into Facebook still involves using a username and password but the 2nd factor of the process is simply a matter of inserting the key into the computer and touching a metallic part of the key. The security keys supported are ones that support a standard called U2F which stands for Universal 2nd Factor authentication. In an attempt to increase the security of online accounts, Facebook has added support for 2 factor authentication using USB security keys.
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June 2023
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