Final answer:
Compromising emanations are classified into three categories: electromagnetic radiation, acoustic, and power line. Each category represents different ways in which unintentional signals or information leakage can occur.
Step-by-step explanation:
Compromising emanations refer to unintentional signals or information leakage that can be intercepted and exploited by unauthorized individuals. These emanations are classified into three main categories: electromagnetic radiation, acoustic, and power line.
Electromagnetic radiation compromising emanations occur when electronic devices emit electromagnetic waves that can be picked up by nearby receivers. This can include unintentional radio frequency emissions, such as from computer monitors or keyboards.
Acoustic compromising emanations refer to sound signals that can carry sensitive information, such as keystrokes or conversations. For example, certain types of keyboards can emit distinctive sounds for each keystroke, allowing someone with specialized equipment to decipher the typed text.
Power line compromising emanations are signals that leak through the electrical power lines, which can be intercepted and analyzed. These emanations can reveal information about the operations and activities within a facility.