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WiFi Scans Your Identity Invisibly
23 May
Summary
- Standard WiFi signals and AI can identify people accurately.
- Routers could become hidden surveillance systems.
- Technology works with existing WiFi hardware, no new tech needed.
Researchers in Germany have developed a groundbreaking system that leverages standard WiFi signals and artificial intelligence to identify individuals with remarkable accuracy. This technology effectively turns ubiquitous WiFi routers into a new form of invisible surveillance.
The system operates by observing the propagation of radio waves, creating a map of surroundings and recognizing people present. It does not require individuals to carry active devices, as nearby wireless activity is sufficient for detection.
This innovation uses existing WiFi hardware, unlike earlier experimental systems. It analyzes normal communication feedback, such as beamforming feedback information, which is transmitted without encryption.
In tests, the system achieved nearly 100% accuracy in identifying individuals, regardless of viewing angle or movement. Researchers warn this powerful capability poses risks to fundamental rights, especially privacy.
Concerns are particularly high for potential misuse in authoritarian regimes to monitor citizens. The developers are advocating for enhanced privacy safeguards in the upcoming IEEE 802.11bf WiFi standard.
