The practice of preventing unauthorized persons from gammg intelligent information by analyzing electromagnetic emanations from electronic equipment, such as computers, is often termed:

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The practice of preventing unauthorized persons from gaining intelligent information by analyzing electromagnetic emanations from electronic equipment is known as Tempest. This includes protecting against eavesdropping on electronic signals, unintentional data leakage, and electromagnetic interference. Veiling refers to a technique for concealing data, bugging refers to the installation of covert listening devices, and hardening refers to the process of making a system more secure by reducing its vulnerabilities.

The Practice of Preventing Unauthorized Persons from Gammg Intelligent Information