Originally Posted by
Randyk47
Anybody who thinks TSA locks are going to keep the dedicated thief out of their luggage is a bit misguided.
Exactly. Or even the not-very-dedicated thief.
There has been discussion here over the years, including posts by people who (claim to) work for the TSA, that the master keys (meant to be) used by TSA at the airport baggage check area go missing on a regular basis. Or are "borrowed" by airline baggage handlers and not returned. Or...
Originally Posted by
SpeedbirdA350
I have seen many pictures of TSA approved locks which have been cut off with bolt cutters.
... are too much of a nuisance, so TSA just cuts the lock off.
Originally Posted by
chrisl137
Readers at a security blog I read have already pointed out an easy trick for opening via the zipper, even if locked, and then reclosing. There are demonstrations on Youtube.
My bag was opened in SYD, SIN or AMS some years ago, presumably with that trick.

Since then I've used a
padlock with a short steel cable, with the lock through the two zipper pulls and the cable around one of the suitcase handles, so that the locked pair of zipper pulls can't be run back-and-forth to reclose the bag. So far so good.