“A well-known California hacker Samy Kamkar who is expert in cracking locks has built a 3D-printed machine, calling his gadget the ‘Combo Breaker,’ that can crack Master Lock combination padlocks – used on hundreds of thousands of school lockers – in less than 30 seconds. A couple of weeks ago, Kamkar introduced the world how a manufacturing flaw in Master Lock combination locks can easily reveal the full combination by carefully measuring the dial interaction with the shackle in eight or fewer attempts. The hacker has also released the plans, 3D models, and code of Combo Breaker online for free as open source.”
http://thehackernews.com/2015/05/password-combination.html
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