Summary:
- Researchers have developed techniques that utilize Wi-Fi signals to detect human presence, movement, and posture by analyzing how the body disrupts radio frequency waves.
- This technology, often referred to as "Wi-Fi sensing," leverages the interference patterns of wireless signals to map physical environments without requiring cameras or wearable sensors.
- While the article focuses on privacy implications, the underlying science relies on established principles of electromagnetic wave propagation and signal processing algorithms.