On Tuesday, AT&T revealed Wireless Account Lock, a new protection designed to curb the SIM-swap scams. When activated, the lock prevents changes from being made to a SIM until it's turned off again.

AT&T has launched a new security feature called "Wireless Lock" that protects customers from SIM swapping attacks by preventing changes to their account information and the porting of phone ...

I'll have to think about a hybrid solution. For the ATT router, I have the Pacer 5268AC, although I've read it's not too hard to get ATT to swap it out for the NVG595 or BGW250, for what that's worth.