Installation of hardware and software of wide range in the  private centrals of  telephone exchange  .  It blocks all external call that tries no authorized access, destined to simulate an internal line or to activate reserved functions or  to take external line to make calls 

Installation of protective systems against external intruders in computers networks LAN, WAN, to assure integrity and confidentiality, as much in the communication of digital information as in the storage of data inside  different magnetic and optical supports.  The service includes the configuration, maintenance, monitoring and update of the software and hardware of passive protection

Jamming the audio and video  environmental micro transmitters , hidden cameras and microphones by means of directional reception, exploration and detection by proximity of the passive and active electronic devices.  Blockade continuous of transmissions of cellular telephones reprogrammed like environmental microphones