Summary

A new open-source technology can use regular Wi-Fi signals to detect people through walls. It can track body movements and even breathing without using any cameras. This means everyday wireless networks could potentially be used for hidden surveillance, which raises serious privacy concerns.

Who Is at Risk

Anyone who lives, works, or spends time near WiFi networks—especially in homes, apartments, offices, or public indoor spaces—is at risk of being monitored without their knowledge.

What to Watch For

Watch for unfamiliar or new WiFi devices or routers in or near your building, unexpected network performance changes, or people requesting to install networking equipment in shared spaces.

What to Do

Immediately secure your WiFi by setting a strong unique router password