Lock Picking and Bypass Techniques Flashcards

Impressioning a lock involves which primary process?

Answer: Filing a blank key based on marks left by binding pins

Impressioning inserts a blank key, applies tension, and reads the marks left by binding pins to file cuts to the correct depth.

What is a plug spinner used for during lock picking?

Answer: To quickly rotate the plug back past the shear line after over-rotation without re-picking

A plug spinner allows the locksmith to reverse the plug's rotation when it has been turned too far, avoiding the need to re-pick all pins.

Which type of lock is considered most resistant to single-pin picking due to its rotating disk mechanism?

Answer: Disc detainer lock

Disc detainer locks use rotating discs rather than pins, making them highly resistant to traditional single-pin picking techniques.

What is 'decoding' a lock in the context of bypass techniques?

Answer: Determining the key bitting without disassembly using a decoder tool or by reading pin positions

Decoding reads the bitting of a lock by measuring pin heights through the keyway or using a specially designed decoder tool.

Which drilling point on a pin tumbler lock cylinder is targeted to destroy the shear line between driver and key pins?

Answer: The shear line at the top of the plug

Drilling at the shear line destroys the driver pins, allowing the plug to rotate freely without requiring a key.

What anti-pick feature do high-security cylinders often use to counter bumping?

Answer: Floating or spring-loaded elements that absorb impact energy

High-security cylinders may include ball bearings, floating pins, or magnetic elements that absorb the kinetic energy of a bump, preventing pins from bouncing.