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Locksport is the sport or recreation of defeating locking systems. Its enthusiasts learn a variety of skills including lock picking, lock bumping, and a variety of other skills traditionally known only to locksmiths and other security professionals. Locksport followers enjoy the challenge and excitement of learning to defeat all forms of locks, and often gather together in sport groups to share knowledge, exchange ideas, and participate in a variety of recreational activities and contests.

Lock picking has existed for as long as locks have, and recreational lock picking has as well. King Louis XVI of France (1754–1793) was a keen designer, picker and manipulator of locks.^[1]

Notes from the MIT Roof and Tunnel Hacking community^[2] were made widely available in 1991 as The MIT Guide to Lock Picking.

However, as an organized hobby, lock picking is a relatively recent phenomenon. The earliest known organized group of lock picking enthusiasts is the German club SSDeV (Sportsfreunde der Sperrtechnik – Deutschland e.V. [de], which translates as Sports Enthusiasts of Lockpicking – Germany, reg. assoc.). SSDeV was founded by Steffen Wernéry in 1997.^[3] As the group grew in Germany, another group was founded in The Netherlands in 1999. This group, originally called NVHS, and currently called TOOOL (The Open Organisation Of Lockpickers),^[4] has also helped to pioneer the collaborative hobby of lock picking.

The term locksport was adopted by lock picking enthusiasts as a way of differentiating what they do from locksmiths, as well as from those who might choose to pick locks for nefarious purposes. As of early 2005, the term had been suggested, but not widely adopted. The creation of the sport group Locksport International in July 2005, founded by Josh Nekrep, Kim Bohnet, and Devon McDormand of LockPicking101.com, helped to solidify the term within the community, and today the term is widely adopted in North America by those who practice the craft for fun and sport. Locksport International is now under the direction of Doug Farre.^[5]

In the beginning of 2024 a book called "locksport" was published, detailing how competitions are run and how to train for them. The book is written by five lockpickers, each writing about their own speciality. ^[6]

At the core of locksport is the philosophical belief in responsible full disclosure. Locksport enthusiasts target security through obscurity that is common within the locksmith industry, as well as among lock manufacturers. Those who choose to participate in locksport often seek to discover security vulnerabilities and notify lock manufacturers as well as, in some instances, the public, in an effort to promote improvements in the field of physical security and to aid consumers in making better, more informed decisions about their own security.^[7] This philosophy is contradictory to that held by many locksmith organizations,^[8] and locksport enthusiasts have come under attack for releasing information about lesser-known vulnerabilities.^{[citation needed]} Nonetheless, locksport enthusiasts persist in discovering weaknesses in all forms of physical security.

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At locksport meetings, members regularly participate in a variety of activities such as lock challenges, lock relay races, standardized tests, and many other such activities dreamed up by the members themselves. Many enthusiasts support each other through online groups and forums such as Facebook, where a number of locksport groups^[9] are available to join for those looking to get into the sport.

One such activity is known as the Padlock Challenge, where members each start with a predefined number of padlocks linked together. As participants pick a lock, they attach the lock to the chain of padlocks of another participant. The goal is to be the first to rid oneself of all one's locks. Another common activity is some form of speed challenge, where members are given a limited time to pick a lock, or compete for the best time on one or more locks.

The Open Organisation Of Lockpickers (Toool) Netherlands chapter engages in two types of competitions.^[10] Stefaan Offerman conceived the 'continuous competition', which runs throughout the year and offers participants the chance to thoroughly familiarize themselves with 20 to 30 different competition locks. Competitors can attempt to pick a specific lock as many times as they wish, with only their fastest time being recorded. The results from previous competitions can be found on the TOOOL Netherlands website.^[11]

Since 2002, Toool has also been organizing the renowned and infamous 'Dutch Open' lockpicking championships. This event attracts lockpickers from various countries, including Germany, France, the Netherlands, and the United States, who compete for the highly coveted cup. Unlike the continuous competition, the Dutch Open provides a new lock for each round, requiring competitors to be in top form. Since 2008, the Dutch Open has been held during LockCon.

The term door security or door security gate may refer to any of a range of measures used to strengthen doors against door breaching, ram-raiding and lock picking, and prevent crimes such as burglary and home invasions. Door security is used in commercial and government buildings, as well as in residential settings.

Some strengthened doors function as fire doors to prevent or inhibit the spread of fire.

Alarms — designed to warn of burglaries.

• Smart locks can be used to limit door access to only people with an electronic key fob or near-field communication device, like a smartphone.^[1] These devices are popular with landlords, who can enable and disable digital access without physically mailing out keys. The locks can log the times of entry, and can trigger an alarm if they are struck during a break-in attempt.
• Deadbolts — unlike common spring latches, the locking mechanism of these typically prevents the bolt from being retracted by force, or shimming, and it cannot be moved to the open position except by rotating the key.

• Strike plate reinforcement can involve reinforcing the strike plate and/or the door frame, to prevent the strike plate from being rammed out of the frame.^{[citation needed]}
• Door reinforcements — various products are made to prevent delamination and or splitting of the door. Sheet steel plate can be placed behind or under the deadbolt and wrap the door edge to prevent breaking the door around the deadbolt. Heavy duty products that place plates on either side the door tied together with screws or bolts can be used to prevent delamination.
• Door chains — allows the doors to be opened slightly to view outside while still remaining locked.
• Secondary, internal locks — sliding bolts, hooks and speciality latches, metal blocks or bars mounted internally.
• Hinge screws — longer or specialized screws that prevent the door from being simply pulled out after removing the hinge pins. Often the hinge pin itself is screwed, from the inside while the door is open, into the hinge to prevent removal of the hinge pin without first opening the door.

• Burglar deterrent CD or MP3 files — home occupancy sounds recorded on a CD; the CD is played when the home owner is away, to mimic the home occupancy activities.
• Door viewers — small fish-eye lenses that allow residents to view outside without opening the door.
• Door windows — there are three common methods to add security to windows in or beside doors: security bars and grates, security films (coatings applied to the glass in windows to reinforce it), or breakage resistant windows (plexiglas, lexan, and other glass replacement products).
• Visibility — most police departments recommend the clearance of shrubs from near doorways to reduce the chance of a burglar being hidden from public view.

The following are the types of doors typically used in residential applications: solid wood door, panel doors (hollow and solid core), metal skinned wood-edged doors and metal edge-wrapped doors, and Fiberglass doors (strongest of the residential type). Typically, door frames are solid wood. Residential doors also frequently contain wood.

Steel doors with Multi locking system are recommended by construction professionals as important equipment in your security checklist. This type of door often comes with a wooden finish to maintain a natural aesthetic in their external appearance.

Security tests by Consumer Reports Magazine in the 1990s found that many residential doors fail or delaminate when force is applied to them. Solid wood doors withstood more force than the very common metal skinned wood-edged doors used in newer construction. A broad range door manufacturer, Premdor (now Masonite) once stated in one of its 1990s brochures entitled "Premdor Entry Systems" page 6 that "The results of tests were overwhelming, Steel edged doors outperform wood-edged doors by a ratio of 7 to 1. When you consider the practically two-thirds of all illegal entries were made through doors... One hit of 100 lb [lbf] strike force broke the wood-edged stile and opened the door. To actually open the steel-edged door required 7 strikes of 100 lb pressure [force]." Most door manufactures offer a number of different types of doors with varying levels of strength.

Consumer Reports Magazine also reported in its test results that door frames often split with little force applied and lower quality deadbolts simply failed when force was applied to the door.

The Chula Vista Residential Burglary Reduction Project which studied over 1,000 incidents found that "methods found to have relatively low effectiveness included: sliding glass door braces, such as wooden dowels, as opposed to sliding door channel or pin locks; deadbolts installed in the front door only; and outdoor lights on dusk-to-dawn timers".^[2]

The Chula Vista Residential Burglary-Reduction Project yielded the following findings: "From victim interviews, we learned that in 87% of the break-ins that occurred when intruders defeated locked doors with tools such as screwdrivers or crowbars, the burglars targeted "the one door that had no deadbolt lock ... not one burglar attempted to break a double-pane window during the course of successful or attempted burglary."^[2]

Wikimedia Commons has media related to Door security.

Locksmithing is the work of creating and bypassing locks. Locksmithing is a traditional trade and in many countries requires completion of an apprenticeship. The level of formal education legally required varies by country, ranging from no formal education to a training certificate awarded by an employer, or a full diploma from an engineering college, along with time spent as an apprentice.

A lock is a mechanism that secures buildings, rooms, cabinets, objects, or other storage facilities. A "smith" is a metalworker who shapes metal pieces, often using a forge or mould, into useful objects or to be part of a more complex structure. Thus locksmithing, as its name implies, is the assembly and designing of locks and their respective keys by hand. Most locksmiths use both automatic and manual cutting tools to mold keys, with many of these tools being powered by batteries or mains electricity.

Locks have been constructed for over 2500 years, initially out of wood and later out of metal.^[1] Historically, locksmiths would make the entire lock, working for hours hand cutting screws and doing much file-work. Lock designs became significantly more complicated in the 18th century, and locksmiths often specialized in repairing or designing locks.

Although replacing lost keys for automobiles and homes, as well as rekeying locks for security purposes, remains an important part of locksmithing, a 1976 US Government publication noted that modern locksmiths are primarily involved in installing high-quality lock-sets and managing keying and key control systems.

Most locksmiths also provide electronic lock services, such as programming smart keys for transponder-equipped vehicles and implementing access control systems to protect individuals and assets for large institutions.^[2] Many also specialise in other areas such as:

• Auto Locksmithing
• Safes

In Australia, prospective locksmiths are required to take a Technical and Further Education (TAFE) course in locksmithing, completion of which leads to issuance of a Level 3 Australian Qualifications Framework certificate, and complete an apprenticeship. They must also pass a criminal records check certifying that they are not currently wanted by the police. Apprenticeships can last one to four years. Course requirements are variable: there is a minimal requirements version that requires fewer total training units, and a fuller version that teaches more advanced skills, but takes more time to complete. Apprenticeship and course availability vary by state or territory.^[3]

In Ireland, licensing for locksmiths was introduced in 2016,^[4] with locksmiths having to obtain a Private Security Authority license. The Irish Locksmith Organisation has 50 members with ongoing training to ensure all members are up-to-date with knowledge and skills.

In the UK, there is no current government regulation for locksmithing, so effectively anyone can trade and operate as a locksmith with no skill or knowledge of the industry.^[5]

Fifteen states in the United States require licensure for locksmiths. Nassau County and New York City in New York State, and Hillsborough County and Miami-Dade County in Florida have their own licensing laws.^[6] State and local laws are described in the table below. 15 states require locksmith licensing: Alabama, California, Connecticut, Illinois, Louisiana, Maryland, Nebraska, New Jersey, Nevada, North Carolina, Oklahoma, Oregon, Tennessee, Texas and Virginia

Locksmiths may be commercial (working out of a storefront), mobile (working out of a vehicle), institutional (employed by an institution) or investigatory (forensic locksmiths) or may specialize in one aspect of the skill, such as an automotive lock specialist, a master key system specialist or a safe technician.^[2] Many locksmiths also work as security consultants, but not all security consultants possess locksmithing skills. Locksmiths are frequently certified in specific skill areas or to a level of skill within the trade. This is separate from certificates of completion of training courses. In determining skill levels, certifications from manufacturers or locksmith associations are usually more valid criteria than certificates of completion. Some locksmiths decide to call themselves "Master Locksmiths" whether they are fully trained or not, and some training certificates appear quite authoritative.

The majority of locksmiths also work on any existing door hardware, not just locking mechanisms. This includes door closers, door hinges, electric strikes, frame repairs and other door hardware.

The issue of full disclosure was first raised in the context of locksmithing, in a 19th-century controversy regarding whether weaknesses in lock systems should be kept secret in the locksmithing community, or revealed to the public.

According to A. C. Hobbs:

A commercial, and in some respects a social doubt has been started within the last year or two, whether or not it is right to discuss so openly the security or insecurity of locks. Many well-meaning persons suppose that the discussion respecting the means for baffling the supposed safety of locks offers a premium for dishonesty, by showing others how to be dishonest. This is a fallacy. Rogues are very keen in their profession, and know already much more than we can teach them respecting their several kinds of roguery.

Rogues knew a good deal about lock-picking long before locksmiths discussed it among themselves, as they have lately done. If a lock, let it have been made in whatever country, or by whatever maker, is not so inviolable as it has hitherto been deemed to be, surely it is to the interest of honest persons to know this fact, because the dishonest are tolerably certain to apply the knowledge practically; and the spread of the knowledge is necessary to give fair play to those who might suffer by ignorance.

It cannot be too earnestly urged that an acquaintance with real facts will, in the end, be better for all parties. Some time ago, when the reading public was alarmed at being told how London milk is adulterated, timid persons deprecated the exposure, on the plea that it would give instructions in the art of adulterating milk; a vain fear, milkmen knew all about it before, whether they practised it or not; and the exposure only taught purchasers the necessity of a little scrutiny and caution, leaving them to obey this necessity or not, as they pleased.

-- From A. C. Hobbs (Charles Tomlinson, ed.), Locks and Safes: The Construction of Locks. Published by Virtue & Co., London, 1853 (revised 1868).

• William F. Banham, founder of Banham Security, invented the first automatic latch bolt lock in 1926 after a series of burglaries on his wife's dress shop. He opened up his own locksmith shop on Oxford Street, London, and offered £25 to anyone who could pick or break one of his patented locks^[25][26] Banham Group still offer the patented locks.^[27][28][29]
• Robert Barron patented a double-acting tumbler lock in 1778, the first reasonable improvement in lock security.
• Joseph Bramah patented the Bramah lock in 1784.^[30] It was considered unpickable for 67 years until A.C. Hobbs picked it, taking over 50 hours.^[31]
• Jeremiah Chubb patented his detector lock in 1818. It won him the reward offered by the Government for a lock that could not be opened by any but its own key.
• James Sargent described the first successful key-changeable combination lock in 1857. His lock became popular with safe manufacturers and the United States Treasury Department. In 1873, he patented a time lock mechanism, the prototype for those used in contemporary bank vaults.
• Samuel Segal of the Segal Lock and Hardware Company invented the first jimmy-proof locks in 1916.
• Harry Soref founded the Master Lock Company in 1921 and patented an improved padlock in 1924 with a patent lock casing constructed out of laminated steel.
• Linus Yale Sr. invented a pin tumbler lock in 1848.
• Linus Yale Jr. improved upon his father's lock in 1861, using a smaller, flat key with serrated edges that is the basis of modern pin-tumbler locks. Yale Jr. developed the modern combination lock in 1862.
• Alfred Charles Hobbs demonstrated the inadequacy of several respected locks of the time in 1851 at The Great Exhibition, and popularized the practice of full disclosure.

• Associated Locksmiths of America
• Door security
• Glossary of locksmithing terms
• Immobiliser
• Locksport
• Master Locksmiths Association
• The National Locksmith

Wikibooks has more on the topic of: Locksmithing

• Media related to Locksmithing at Wikimedia Commons