An attacker uses lock picking tools and techniques to bypass the locks on
						a building or facility. Lock picking is the use of a special set of tools to
						manipulate the pins within a lock. Different sets of tools are required for
						each type of lock. Lock picking attacks have the advantage of being
						non-invasive in that if performed correctly the lock will not be damaged. A
						standard lock pin-and-tumbler lock is secured by a set of internal pins that
						prevent the tumbler device from turning. Spring loaded driver pins push down
						on the key pins preventing rotation so that the bolt remains in a locked
						position.. When the correct key is inserted, the ridges on the key push the
						key pins up and against the driver pins, causing correct alignment which
						allows the lock cylinder to rotate. Most common locks, such as domestic
						locks in the US, can be picked using a standard 2 tools (i.e. a torsion
						wrench and a hook pick).