The TSA is learning a basic lesson of physical security in the age
of 3-D printing: If you have sensitive keys — say, a set of
master keys that can open locks you’ve asked millions of Americans
to use — don’t post pictures of them on the Internet.
A group of lock-picking and security enthusiasts drove that lesson
home Wednesday by publishing a set of CAD files to Github that
anyone can use to 3-D print a precisely measured set of the TSA’s
master keys for its “approved” locks — the ones the agency can
open with its own keys during airport inspections. Within hours,
at least one 3-D printer owner had already downloaded the files,
printed one of the master keys, and published a video proving that
it opened his TSA-approved luggage lock.