Ordinary WiFi can now identify people with near perfect accuracy
Researchers in Germany have developed a method to identify individuals using ordinary WiFi signals with near-perfect accuracy. This technology analyzes how radio waves reflect off people's bodies, allowing for recognition even when devices are turned off. The implications for privacy and surveillance are significant, raising concerns about potential misuse in various contexts.
- ▪Scientists have demonstrated that standard WiFi routers can identify people by analyzing radio wave reflections.
- ▪The technology can recognize individuals without them carrying an active device, raising privacy concerns.
- ▪The method utilizes normal communication between WiFi routers and connected devices, making it accessible with existing hardware.
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- ▪ Ordinary WiFi can now identify people with near perfect accuracy — r/privacy
- ▪ Ordinary WiFi can now identify people with near perfect accuracy — /r/Technology
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| Original publisher | ScienceDaily |
| Canonical URL | https://www.sciencedaily.com/releases/2026/05/260522023127.htm |
| Publication time | Fri, 22 May 2026 23:03:54 EDT |
| Retrieval time | 2026-05-23T03:07:24.414Z |
| Last seen | 2026-05-23T03:07:24.414Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | td4s8e51ZE_h · 4 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Science News from research organizations Ordinary WiFi can now identify people with near perfect accuracy Scientists say ordinary WiFi routers may soon be able to secretly recognize and track people with near-perfect accuracy. Date: May 22, 2026 Source: Karlsruher Institut für Technologie (KIT) Summary: Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, researchers can effectively “see” and recognize individuals — even if they are not carrying a device and even if their phone is turned off.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at ScienceDaily.
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