Lock bypass is a method of circumventing a lock's security mechanism without engaging with the lock's intended operation, often without the use of a key or the standard unlocking procedure. This technique exploits weaknesses or design flaws in the locking system, allowing unauthorised access through alternative means such as manipulation of locking components or the use of specialised tools. Lock bypass strategies vary depending on the lock type, including pin tumbler locks, wafer locks, and electronic locks, each presenting unique vulnerabilities.
In the field of lock picking, bypass methods are distinguished from traditional lock picking because they do not involve interaction with the lock mechanism's primary security pins. Instead, bypass techniques might target auxiliary mechanisms or structural defects such as inadequate shielding of internal parts. Common tools employed in lock bypass include bypass drivers, shims, and master keys, each designed to exploit specific lock vulnerabilities. The understanding and application of lock bypass methods are crucial in security testing and locksmithing, enabling professionals to enhance the resilience of locking systems against such attacks.