Two factor authentication is so important in the modern internet. As far as I know, it makes it extremely difficult to hack into an account, even if you have the password. But how does it work? How does this random website know that I’ve entered the temporary code from my authenticator app correctly?
Like, 2fa with email or text is simple, but how, specifically, do the authenticator apps on phones work?
In: 5
While setting up 2FA, website gives you code which we give it in authenticator app. Now both website and our app has this common code. When we try to login Authenticator will generate codes based on current time and website can also verify the same code based on current time and validate that given 2FA is correct
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