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2. Lock bypass - Wikipedia

   en.wikipedia.org/wiki/Lock_bypass

   A lock bypass is a technique in lockpicking, of defeating a lock through unlatching the underlying locking mechanism without operating the lock at all. It is commonly used on devices such as combination locks, where there is no natural access (such as a keyhole) for a tool to reach the locking mechanism. Because the mechanism itself is not ...

3. Electromagnetic lock - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_lock

   Typical single door electromagnetic locks are offered in both 600 lbs. (2669 N) and 1200 lbs. (5338 N) dynamic holding force capacities. A "fail safe" magnetic lock requires power to remain locked and typically is not suitable for high security applications, because it is possible to disable the lock by disrupting the power supply.

4. Berlin key - Wikipedia

   en.wikipedia.org/wiki/Berlin_key

   The mechanism makes it impossible to forget to lock the door without also forgetting the key in the lock. Also, locking an open door is usually not possible. Invented by the Berliner locksmith Johannes Schweiger, [2] the Berlin key was massively produced by the Albert Kerfin & Co company starting in 1912. [3] With the advent of more recent ...

5. Magnetic keyed lock - Wikipedia

   en.wikipedia.org/wiki/Magnetic_keyed_lock

   A magnetic keyed lock or magnetic-coded lock is a locking mechanism whereby the key utilizes magnets as part of the locking and unlocking mechanism. Magnetic-coded locks encompass knob locks, cylinder locks , lever locks , and deadbolt locks as well as applications in other security devices.

6. Electric strike - Wikipedia

   en.wikipedia.org/wiki/Electric_strike

   This is exactly the same principle as a child safety door lock which is installed on car doors. Electric strikes on AC allow someone outside the door to hear when the door is open. The buzzing noise is typically made by applying alternating current (AC) to the strike instead of direct current (DC). When using a DC powered strike, the sound is ...

7. Skeleton key - Wikipedia

   en.wikipedia.org/wiki/Skeleton_key

   Each door will have different wards and can only be opened by the correctly warded key or the master key. A skeleton key has the warded section of the key removed so that it opens all the doors of a system. Some applications, such as a building with multiple entrance doors, have numerous locks that are keyed alike; one key will open every door.