the.com/bump key
a key cut to open any lock, no locksmith license required, just physics and nerve.
means a specially filed key that, when tapped while turning, jars a pin-tumbler lock's pins into alignment and pops it open.
from locksmiths knew the bumping trick for decades as an internal secret, then a 2005 dutch security paper and youtube demos leaked it to the public, spawning a small panic industry of bump-resistant locks.
how it workskinetic energy briefly separates pin stacks at the shear line
legalitylegal to own in most places, shady in intent
defensehigh-security pins and sidebar locks resist bumping entirely
time to openoften under 30 seconds for skilled users