[qkhhly]

what is the failsafe mode if you lost all your keys, or forget your password, or fingerprint reader runs out of battery? same thing applies here.

[otterley]

With a typical smart lock, the failsafe mode for the battery dying or forgetting your password is a backup key.

The failsafe mode for losing a backup key is getting a locksmith to come out and fashion you a new key.

[qkhhly]

if a locksmith can open your door, others can, too. in this rare event, i think brute force is an acceptable price to pay for the extra security.