Information protection indoor against leakage through technical channels

Abstract

Due to the cheapness of fixed-line and ease set of extensions, the question of its use in enterprises (organizations) is still relevant. Therefore, there is a significant probability of using an attacker telephone lines to obtain confidential information that could lead to significant negative consequences for the enterprise (organization).

The principles of of using telephone lines for confidential negotiations, the possible ways of obtaining confidential information by an attacker. Methods of interception in the room with the established telephones, and protection of this information against leakage.