Break a Number Lock

Raj PagariyaCyber Security


The manual lock is no good in today’s world. Due to the presence of a locksmith everywhere, the task of getting a duplicate key is child’s play. In times like these, all of us have shown a high level of faith in the fancy number locks. It’s not like we believe in what fancy locks have got to offer. However, they are probably 5% better and much more sophisticated than the traditional ones.


I can’t say about sophistication but security is something we all need to rethink about. The Combo Breaker is a motorized, battery-powered, 3D-printed, Arduino-based device that can crack any Master combination locks in less than 30 seconds. You can easily break a lock in less than 8 tries. It is a simple device that anyone can build. Combo Breaker uses a simple program. This program exploits the manufacturing flaw of the combination disks present in the lock that has a different sort of resistance to certain numbers. What it does is not very different from a brute force attack used to crack passwords on a system. Hence, within seconds without any human interaction, it opens your lock.

This was created by Samy Kamkar.He invented the robotic combo lock-cracking device.

You can learn to make your own Combo Locker right here:

Redesigning Locks is the need of the hour. It is high time we innovate a better lock to protect our luggage, lockers etc.