I can type using my nose. it’s a “Hack”.
This is only a hack if you aren’t the owner and can take the owners phone convince the owner to press their thumb into hot glue but not place it on their phone.
The creating a print from a photo is much more frightening but going to university to learn computer science and mastering the techniques required so you can steal the phone and unlock it before they remotely wipe it feels less efficient than just jumping them and beating the security code out of them.