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  2. Keycard lock - Wikipedia

    en.wikipedia.org/wiki/Keycard_lock

    Keycard systems operate by physically moving detainers in the locking mechanism with the insertion of the card, by shining LEDs through a pattern of holes in the card and detecting the result, by swiping or inserting a magnetic stripe card, or in the case of RFID or NFC cards, merely being brought into close proximity to a sensor.

  3. Door handle - Wikipedia

    en.wikipedia.org/wiki/Door_handle

    This is an accepted version of this page This is the latest accepted revision, reviewed on 21 January 2025. Device to open or close door Various examples of door handles throughout history A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard ...

  4. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    The functions of a remote keyless entry system are contained on a key fob or built into the ignition key handle itself. Buttons are dedicated to locking or unlocking the doors and opening the trunk or tailgate. On some minivans, the power sliding doors can be opened/closed remotely.

  5. Door breaching - Wikipedia

    en.wikipedia.org/wiki/Door_breaching

    The simplest solution is to check the door knob first. Utilizing a breaching tool is unnecessary if the door is unlocked and easy to open. [ 5 ] [ 3 ] [ 6 ] [ 1 ] If the door is locked, breachers can attempt to force inward-opening doors with a strong kick.

  6. Tamper-evident technology - Wikipedia

    en.wikipedia.org/wiki/Tamper-evident_technology

    For example, panic buttons in burglar alarm systems might require a plastic key to reset the switch. In very much the same manner as with fire alarms, many emergency handles and levers, or handles that are not meant to be opened regularly, are enclosed in a thin metal or plastic security seal.

  7. Glossary of locksmithing terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_locksmithing_terms

    In pin tumbler locks, the series of key cuts on a key causes the pins to line up at the shear line or gate so the lock will open. In warded locks, the key cuts bypass the wards so the key can push or pull the bolt. [6] Key pin In a pin tumbler lock, the key pin is in contact with the key. It has varying lengths, corresponding to the key's ...

  8. Lock bumping - Wikipedia

    en.wikipedia.org/wiki/Lock_bumping

    Lock bumping is a lock picking technique for opening a pin tumbler lock using a specially crafted bump key, rapping key or 999 key. [1] A bump key must correspond to the target lock in order to function correctly.

  9. Deadbolt - Wikipedia

    en.wikipedia.org/wiki/Deadbolt

    Door with two locks, one in the doorknob and a separate deadbolt. A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [1] It is distinct from a spring bolt lock because a deadbolt can only