A History of Lock Picking

Lock picking predates the word locksmith. Any mechanism with a key can be reverse-engineered by patient hands. Historically, picking was practiced by burglars, investigators, inventors testing rivals, and — increasingly — hobbyists who treat locks as puzzles.

The public drama of picking famous locks — especially Alfred Hobbs at the Crystal Palace — forced manufacturers to treat bypass research as part of product development, not mere criminal folklore.

Lock picking tools and practice lock
Understanding internal geometry is the foundation of both picking and defense. Image: Wikimedia Commons

Early Methods on Warded Locks

Skeleton keys and filed blanks defeated warded locks by avoiding obstructing wards. As locks grew more complex, pickers used tension wrenches and probes — tools still recognizable today.

Lever Lock Manipulation

Pickers lift levers one at a time, feeling for binding points. False gates in quality locks frustrate this. Decoder tools later allowed locksmiths to measure lever heights without full disassembly.

Pin Tumbler Era

Mass-produced pin tumblers brought picking to common doors. Bump keys, raking, and single-pin picking became household concerns in security journalism. Manufacturers responded with security pins, sidebars, and certifications (UL 437, EN 1303).

Locksport and Education

Organizations like TOOOL and DEF CON's Lockpick Village promote ethical picking for education. Participants argue openness improves security — echoing Hobbs's 1851 thesis.

Professional Ethics

Licensed locksmiths use picking to open doors for locked-out customers without damage. Trade ethics prohibit picking for unauthorized entry. Understanding history helps technicians explain risks honestly to customers upgrading hardware.