Defeating Moving Elements in High Security Keys
Bill Graydon analyzes high-security lock designs featuring moving key elements, demonstrating bypasses, casting tricks, and 3D printing duplication techniques.
Summary
The Evolution of Moving Elements in High-Security Locks
To prevent unauthorized 3D printing and casting duplication, high-security lock manufacturers (Mul-T-Lock Interactive, EVVA, ASSA) introduced active moving elements on key blades.
Mechanical Internals of Active Key Mechanisms
Bill Graydon breaks down the physical mechanics of interactive spring-loaded balls, floating pins, and magnetic rotors inside keyways.
Duplicating and Defeating Moving Elements
Graydon showcases innovative duplication methods—including multi-part 3D resin printing, modular key blanks, and custom mechanical picking tools.
Implications for Commercial Physical Security
The author provides facility managers and security professionals with objective criteria for evaluating high-security mechanical access systems.
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