46
1 Information Weapon: Concepts, Means, Methods …
Fig. 1.12 Scheme of computer equipment (CE) stray electromagnetic radiation (SER) interception
using technical intelligence equipment (TIE SERP)
The quality of an intercepted image is much worse than the quality of the image
displayed on the PC screen (Fig. 1.13b) [27].
Interception of the text in small print displayed on the screen is particularly
challenging (Fig. 1.14 [27]).
As an indicator for assessing the effectiveness of information protection against
leakage through technical channels, the probability of correct detection of the
informative signal (P0) by the receiver of the intelligence equipment is used. The
Neumann-Pearson criterion is generally used as the detection criterion. Depending
on the information protection task to be solved, the threshold value of the probability
of detecting an informative signal may range from 0.1 to 0.8, obtained with a false
alarm probability—from 10
3 to 10
5 .
1 Information Weapon: Concepts, Means, Methods …
Fig. 1.12 Scheme of computer equipment (CE) stray electromagnetic radiation (SER) interception
using technical intelligence equipment (TIE SERP)
The quality of an intercepted image is much worse than the quality of the image
displayed on the PC screen (Fig. 1.13b) [27].
Interception of the text in small print displayed on the screen is particularly
challenging (Fig. 1.14 [27]).
As an indicator for assessing the effectiveness of information protection against
leakage through technical channels, the probability of correct detection of the
informative signal (P0) by the receiver of the intelligence equipment is used. The
Neumann-Pearson criterion is generally used as the detection criterion. Depending
on the information protection task to be solved, the threshold value of the probability
of detecting an informative signal may range from 0.1 to 0.8, obtained with a false
alarm probability—from 10
3 to 10
5 .