Standard WiFi can identify individuals with near-perfect accuracy
Researchers at the Karlsruher Institut für Technologie have developed a method to identify individuals using ordinary Wi-Fi signals with near-perfect accuracy. This technology can track people even when they are not carrying devices or when their phones are turned off. The implications of this advancement raise concerns about privacy and surveillance in everyday environments where Wi-Fi is ubiquitous.
- ▪The technology uses radio waves to create images of surroundings and recognize individuals.
- ▪It can identify people based on their movement and physical characteristics, even through walls.
- ▪Researchers achieved nearly 100% accuracy in identifying participants during tests.
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Record
| Original publisher | Digital Journal |
| Canonical URL | https://www.digitaljournal.com/tech-science/privacy-any-wi-fi-can-now-identify-you-with-near-perfect-accuracy/article |
| Publication time | Tue, 26 May 2026 06:18:07 +0000 |
| Retrieval time | 2026-05-26T06:37:45.433Z |
| Last seen | 2026-05-26T06:37:45.433Z |
| 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 | y7oJ3tudEkbY |
| 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
Tech & Science Privacy: Any Wi-Fi can now identify you with near perfect accuracy Soon AI will know where we are and where we have been. Is this a threat to personal liberty? ByDr. Tim Sandle Published May 23, 2026 Image: © PhotoTelegram Image: © PhotoTelegram Researchers report how ordinary Wi-Fi routers may soon be able to secretly recognize and track people with near-perfect accuracy. Is this something of societal benefit or a further extension of state surveillance of its citizens? Scientists at the Karlsruher Institut für Technologie (Germany) have demonstrated a new form of surveillance: identifying people using nothing more than ordinary Wi-Fi signals. By analysing how radio waves bounce around a room, researchers can effectively “see” and recognise individuals.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Digital Journal.
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