An engineer is an internet-channel about work of locks, safes and other instruments of safety. A channel exists from 2011. We choose from all array of information about locks, safes, that is really important for a spectator and user in the plan of defence of property and information. We try not only to advertise locks, safes, ABUS but also to show vulnerability of them from dissection and destruction. All tests on durability we conduct personally, lay out without editing. Cледим after the novelties of locks, safes, and also methods of their unauthorized dissection, carrying out examination of reliability. We value and develop work of breakdown services in the whole world. High quality are tests on destruction, dissection by the master keys, useful advices for those who wants to choose reliable lock or safe.site:rivnestal.com.ua/ru