Twitter now lets you set a security key as your only two-factor authentication method
Being able to use a security key as one of your two-factor authentication methods isn’t new, but now you can make it the only one, if you want to. Physical security keys have advantages over other two-factor methods like an authenticator app or SMS because they don’t rely on a code that a bad actor could intercept.
Now security keys can be your one and only two-factor authentication method on mobile and web.
— Twitter Support…