The lock is designed to be opened
A TSA-approved luggage lock is not a sealed barrier between your bag and everyone else. It is a lock that can be opened with a master key used by airport security screeners. If a checked bag needs a closer inspection, the lock can be opened and then relocked instead of being cut off.
That convenience has a tradeoff: the lock’s protection depends on keeping its matching master key out of unauthorized hands. It can deter casual rummaging, but it cannot promise that only you—or a screener—can get into the bag. A person with the right key, or enough time and tools, may be able to bypass it.
What it does—and what it doesn’t
The lock can help keep zippers from sliding open accidentally and make opportunistic access less convenient. It is not a guarantee against theft, and “TSA-approved” does not mean the bag is protected by a special layer of airport security. The label refers to access for inspection, not to a higher level of resistance against tampering.
For anything difficult or costly to replace, the practical consequence is simple: keep it in your carry-on when possible. A TSA-approved lock is best understood as a convenience for checked luggage, not a vault.
