Q98
Single choice
At a private aerospace research facility in Mesa, Arizona, an executive raises concerns after sensitive discussion points from speakerphone meetings begin surfacing externally. The device shows no indicators of active audio recording, and application permission history does not reflect recent camera or microphone authorization changes.
A forensic mobile analysis identifies that an installed application has been continuously reading motion sensor output while the phone's loudspeaker is active. The collected sensor data was later transmitted to a remote server, where acoustic characteristics were reconstructed from the recorded measurements.
Identify the attack technique responsible for this compromise.