EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Aug 16·5 min read
Ordinary WiFi can now identify you with near-perfect accuracy
TL;DR
Researchers have demonstrated that ordinary WiFi networks can identify individuals with nearly 100% accuracy using unencrypted signals, without the need for cameras or connected devices. This breakthrough suggests that WiFi could serve as a powerful surveillance tool.
✦ Why It Matters
Evaluate your WiFi security settings to mitigate potential privacy risks from this technology.
Key Takeaways
- Understand how WiFi signals can be used for identification.
- Advocate for privacy measures in upcoming WiFi standards.
- Stay informed about potential surveillance technologies in public spaces.
- Consider the implications of unencrypted data in everyday devices.
How It Works
The technique utilizes beamforming feedback information (BFI), which is unencrypted data exchanged between WiFi devices and routers. By analyzing these signals, researchers can create images of individuals and identify them based on their unique movement patterns, similar to how a camera would capture images.