Master Key Opens Specific Locks, Not All

Aaj Tak · interesting

Contrary to popular belief and movie portrayals, a master key does not open every lock. In reality, a master key is part of a 'master key system' designed to open specific, pre-determined locks within that system. Companies like Dormakaba and ASSA ABLOY explain that these systems grant different levels of access, with individual keys opening one lock and master keys opening multiple designated locks.