Evidence · DiggingBeagle record
Exfiltrating data from an air-gapped system through a screen-camera covert channel
Evidence record
Claim-level citations (2)
- supportsLow-contrast QR codes formed a screen-to-camera air-gap channel: The screen-camera study encoded sensitive data in QR codes embedded into displayed frames using slight visual changes intended to evade human perception.
Abstract
- supportsLow-contrast QR codes formed a screen-to-camera air-gap channel: The authors identify webcams, surveillance cameras and smartphone cameras as possible receivers and demonstrate reconstruction under multiple viewing angles.
Abstract, receiver and viewing-angle discussion