page_title: Lock picking
section_title: Other locks
hierarchical_section_title: Lock picking / Methods / Other locks
caption_attribution_description: English: Lockpick used to steal a car in Helsinki (Finland) found during police investigation underneath the floor carpet of the passenger side.
context_page_description: Lock picking is the art of opening a lock without the key and without damaging or destroying the lock or its door. It is usually used by locksmiths to let people back in who have lost their keys or locked them inside a car or house. Lock picking is very rarely used by criminals, because picking a lock is difficult and other ways of entering such as breaking a window are much easier. Some people pick their own locks as a hobby. In most places picking locks that you own is legal, but it is illegal to pick locks that you do not own or do not have permission to pick.
  History of keys and locks goes back for about 4,000 years. Ancient people also wanted to protect their possessions and keep them in places where other people cannot get access to them. The first locks and keys were made of wood and other easily accessible materials and they provided the small safeguard against theft or break-in. However, such locks at least let the owners know if someone tried to tamper with the lock.
  The earliest known key and lock was discovered in the Nineveh ruins, which was the capital of ancient Assyria. They were dated to 704 BC.
context_section_description: Most padlocks can be opened by inserting a thin piece of metal called a shim between the shackle and the body of the lock. This will need to be done on both sides if there are locking levers on both sides. The shim pushes the locking latch aside and allows the lock to open. High-security padlocks often use a ball-bearing latch, which can not be pushed aside with a shim. Some door locks can be shimmed with a credit card or similar thin plastic object. The card is placed between the door and doorframe, which pushes the latch aside. Combination locks can not be picked, but it is often possible to find the combination by feeling for certain clicks inside the lock, except on certain high-security safe locks. Some combination locks have small cracks through which the parts inside the lock can be seen, allowing the combination to be determined. The Master Lock #175 brass combination lock has a very unique flaw allowing a small piece of metal to be inserted into the bottom of the lock, which pushes the locking bar aside, opening the lock. A special pick exists for disc-detainer locks, but it is only effective on inexpensive locks that do not have false gates. A well-made disc-detainer lock with false gates (such as the Abloy Protec) is considered almost impossible to pick. Lever locks are considered difficult, although possible, to pick and also require a special pick. Tubular locks can be picked with a special tubular pick. Some poorly-made tubular locks can be picked with an ordinary writing pen. Most car locks can be defeated by inserting a metal or plastic rod with a small hook on the end into the area between the rubber seal on the window and the car body, and using the hook to pull the lock lever that is normally pulled by hand from the inside of the car. On most cars, it is possible to electrically connect the switch contacts on the ignition lock to start the car without a key, completely bypassing the mechanical lock. This is called hotwiring the car. Most cars use a wafer-tumbler based lock, so it is also possible to pick the door or ignition locks the traditional way. Some cars, such as many Honda and BMW models, have electronic protection against both hotwiring and traditional picking.
caption: Lock pick made from an umbrella hinge. Used in car theft in Helsinki
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