METHOD OF CHECKING INFORMATION SECURITY EFFECTIVENESS Russian patent published in 2015 - IPC G10L15/00 H04R29/00 

FIELD: physics.

SUBSTANCE: method comprises measuring signal and noise octave levels at a selected control point; determining the radius of the optimum area of arranging vibroacoustic signal sensors; calculating the optimum number of vibroacoustic signal sensors capable of intercepting speech over technical information leakage channels (TILC); calculating the maximum formant speech intelligibility from the estimated TILC; based on the values of maximum formant speech intelligibility obtained via separate TILC, using a developed relationship which takes into account the mutual "weight" of the TILC, determining coordinates of the optimum point of arranging IAS in a facility; determining formant speech intelligibility for the controlled TILC for optimum arrangement and orientation of IAS in a facility; calculating maximum formant speech intelligibility from the set of estimated TILC, which is converted to an output factor - an integral value of verbal speech intelligibility intercepted from the facility; comparing the output factor with a standard value, from which the conformity of evaluation results with voice information security requirements is determined.

EFFECT: high reliability of evaluating voice information security.