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Bump Proof Locks

The document discusses various bump proof lock cylinders and their security features to resist bumping attacks. It describes modified pin tumbler systems like the Gege pExtra that use techniques like rapid pins to prevent bump keys from setting all pins. It also covers special locking systems like the Abloy Protec's disc mechanism and EVVA 3KS' slider system. The document provides images and explanations of how these high security cylinders work and their protections against manipulation methods like bumping, picking, and drilling.

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