In submission
2026
Seeing Isn't Securing: Mitigating Vision Perception Threats in Smart Home Security Systems by Harnessing Adversarial Optical Physics
Eftakhar Ahmed Arnob, Yazhou Tu, Xingli Zhang, Kevin Butler, Xiali Hei
I tested nine commercial security cameras and doorbells from six manufacturers under laser light injection. Every one failed: person, face, package and even basic motion detection went quiet, while the app still reported nothing wrong. The paper then builds two defences that read the physics of the injected light instead of retraining the AI, and tests them across 970 scenario videos.
CPS security · computer vision · optical injection