Just wait until we all have an embedded SIM card....
Not to sound too alarmist or conspiratorial or just friggin SF, but I've heard of some employees of some company(ies) somewhere agreeing to be tagged.
What happens when the body-snatchers discover you've been tagged and can re-use your creds?
I'm sure all the AV/malware folks are up on this, so no worries. How about the "state" actors which abound and seem to enjoy control.
OK, back under my rock with a tinfoil roof.