Chubb M3 (Medeco) Lock Bumped open

This example is from over 1 year ago online by a professional locksmith in the United Kingdom.

Chubb have an overseas license to the Medeco M3 lock system and market it complete with the Chubb name embossed on the product.

Medeco technology is requested by many US companies attempting to maintain some uniformity across their properties, however as this video plainly shows, the Medeco product is NOT BUMP PROOF.

I must repeat that the original and first bump proof pin tumbler lock cylinder product on the market is the Bilock Extreme Security mechanism. With Bilock, you can guarantee that duplicate keys cannot be produced and that bump keys WILL NOT WORK. Bilock locks were first manufactured in Australia in the early 1970's. The product is found in 132 countries around the world and is favored by casinos, banks and government institutions to protect property.