I Don't Belive Your 2FA

Two factor? Which two factors?

Something you have, something you know, and something...

No, not in theory - in reality. Which two factors?

You need a PIN from the phone to access resources, such as email.

Do you have email on your phone? Because that's one 'factor': your phone. Once someone controls your phone, they can use your email account.

Right, but phones are secure. PCs are not.

That's your PC, not my PC. Regardless, can we just say 'secure device authentication' or something?