System and method for preventing recorded voice access to an information handling system using a contextual engine

A method executing computer-readable program code instructions to prevent passive voice access with a recorded voice to the information handling system comprising:

• capturing, via a microphone, acoustical background sounds and buffering the acoustical background sounds in a sliding audio buffer;
• capturing, via the microphone, an passive voice access attempt;
• executing computer-readable program code instructions of a voice recognition algorithm to determine if a user's voice in the passive voice access attempt matches an authorized voice of the user;
• executing computer-readable program code, via the hardware processor of a context gathering module to capture operating conditions of the information handling system and environmental location context sensor data for the information handling system via a plurality of environment detection sensors as input to a contextual environment machine learning (ML) model with the passive voice access attempt including background noise to generate context matching score for the passive voice access attempt;
• executing computer-readable program code instructions of a voice contextual comparison module to compare the buffered acoustical background sounds to background noise within the passive voice access attempt to generate a voice background matching score for the passive voice access attempt;
• executing computer-readable program code instructions of the voice contextual comparison module to compare the voice background matching score and the context matching score to a threshold access authorization confidence score;
• and
• granting access to the information handling system when user's voice in the passive voice access attempt matches the authorized voice of the user and when the voice background matching score and the context matching score for the passive voice access attempt meets the threshold access authorization confidence score.

An information handling system executing computer-readable program code instructions to prevent passive voice access by a recorded voice to the information handling system comprising:

• a hardware processor, a data storage device, and a power management unit (PMU) to provide power to the hardware processor and data storage device;
• a microphone to capture acoustical background sounds and buffer the acoustical background sounds in a sliding audio buffer;
• the microphone to capture an passive voice access attempt;
• the hardware processor to execute computer-readable program code of an automatic speech recognition (ASR) module to delineate between the background noise within the passive voice access attempt and a voice of a user in the passive voice access attempt;
• the hardware processor to execute computer-readable program code of a context gathering module to capture operating conditions of the information handling system and environmental location context sensor data for the information handling system via a plurality of environment detection sensors as input to a contextual environment machine learning (ML) model with the background noise within the passive voice access attempt to generate context matching score for the passive voice access attempt;
• the hardware processor to execute computer-readable program code instructions of a voice contextual comparison module to:
• compare the buffered acoustical background sounds to background noise delineated from the recorded passive voice access attempt to generate a voice background matching score for the passive voice access attempt;
• and
• compare the voice background matching score and the context matching score to a threshold access authorization confidence score to determine if access should be granted to the information handling system;
• and
• the hardware process to grant access to the information handling system when the voice background matching score and the context matching score for the passive voice access attempt meet the threshold access authorization confidence score.