Some popular home security cameras have the potential to tip off burglars when you’re not home.
Researchers from London’s Queen Mary University say they’re not aware that any criminals have actually done this yet.
They say, however, there is a chance that someone could develop a program that does so and sell it online.
When someone is home, their movement requires the cameras to upload more data.
But the data uploads are comparatively smaller when no one is home.
If a crook figured out a way to monitor the change, without hacking the camera, they might be able to tell nobody is there.
The Chinese Academy of Science co-authored the study, using data provided by a large Chinese manufacturer of security cameras.
Researchers are trying to extend their work to figure out how to maintain camera performance while reducing privacy risks.