Strong 2FA is holding your cryptocurrency in a multisignature setup instead of an exchange that holds your keys for you and can disregard the 2FA whenever it wa

Strong 2FA is holding your cryptocurrency in a multisignature setup instead of an exchange that holds your keys for you and can disregard the 2FA whenever it wants. The security bottleneck is the one institution that holds all of the responsibility. It cannot be fixed by giving more hoops to authenticate themselves to the one institution