Devices and the complexes made by "Computer service devices", intended for emergency and guaranteed de-struction of the confidential information under the initiative of the user or automatically at occurrence of danger of its out-flow, disclosure or plunder. The information can be deleted from hard disks (IDE and SCSI), diskettes, streamer tapes, set of disk drives Zip, audio of video cassettes and other magnetic disk drives.

All holsters EFA are meant for holding in one's belt and quick coming to full alertness of the gun using one hand. The main difference from all existent holsters is that the pistol is positioned in the holster EFA at an absolutely secure condition (there is no cartridge in a cartridge chamber and it placed for safety lock) and by taking out from the holster the pistol automatically takes away from safety lock and chamber a cartridge to a cartridge chamber. At that the time is necessary for bringing pistol to a fighting position and shot itself is reduced to 0,4 seconds.

Holsters EFA are produced from a unique by its strengthening and chemical characteristics, thermoplastic Armamid PA SV. This material is possessed of such characteristics as a high harshness, strength, percussive viscosity, low constant of friction and wear factor, efficiency at a temperature from -60 °С to +150 °С.
At the same time holster EFA has a simple and safe fixation of a pistol in it, and it is comfortable for using it from a sitting and lying positions.
An opportunity of modification for the different models of pistols and submachine guns is provided.
Invention is patented. All the rights are covered!