This seems like a more error-prone 2FA. Yeah, you don't need to type in a few numbers; instead, you take your phone out and hope that the ambient noise is "clos

This seems like a more error-prone 2FA. Yeah, you don't need to type in a few numbers; instead, you take your phone out and hope that the ambient noise is "close-enough." Of course, if you're in a particularly erratic environment -- such as songs switching, or sitting in a crowded area -- I'm sure the security mechanism would fail. Seems frustrating and gimmicky, but maybe that's just me.