Imgur user [Criand] has been hard at work on his own project made entirely out of paper, a combination lock that can hold a secret message (reddit post). The motivation for the project was as a ...

A TSA agent has revealed how combination locks on luggage don't protect against theft if the actual zipper of the suitcase is ...

Combination locks, in particular (especially TSA-approved locks), are created to lock luggage shut while still allowing airport security staff to look inside without damaging the lock.