{"id":76300,"date":"2026-08-03T07:21:42","date_gmt":"2026-08-03T07:21:42","guid":{"rendered":"https:\/\/crowdfundjunction.com\/blog\/ordinary-wifi-can-now-identify-people-with-near-perfect-accuracy\/"},"modified":"2026-08-03T07:21:42","modified_gmt":"2026-08-03T07:21:42","slug":"ordinary-wifi-can-now-identify-people-with-near-perfect-accuracy","status":"publish","type":"post","link":"https:\/\/crowdfundjunction.com\/blog\/ordinary-wifi-can-now-identify-people-with-near-perfect-accuracy\/","title":{"rendered":"Ordinary WiFi Can Now Identify People With Near-Perfect Accuracy"},"content":{"rendered":"<p><b>(Originally posted on : Bitcoin News )<\/b><br \/>\n<\/p>\n<div>\n<div class=\"@container mb-[25px] rounded-sm overflow-clip py-0.5 pr-0.5 pl-2.5 bg-success-100\">\n<div class=\"flex flex-col gap-m overflow-clip rounded-[6px] !bg-success-10 p-3 @[420px]:p-m\">\n<h2 class=\"m-0 flex items-center gap-s text-[19px] !text-[#1c1c1c] md:text-[20px]\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"10\" viewbox=\"0 0 16 10\" fill=\"none\" class=\"shrink-0 text-success-100\" aria-hidden=\"true\"><path d=\"M1 1.5h14\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\"\/><path d=\"M1 8.5h10\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\"\/><\/svg><span>Key Takeaways<\/span><\/h2>\n<ul class=\"m-0 flex list-none flex-col gap-m pl-0\">\n<li class=\"m-0 flex items-start gap-s !text-[#434248]\"><span class=\"mt-2 size-2 shrink-0 rounded-full bg-success-100\" aria-hidden=\"true\"\/><span class=\"text-body\">Karlsruhe Institute of Technology\u2019s BFId identified 197 people with 99.5% accuracy on May 22, 2026<\/span><\/li>\n<li class=\"m-0 flex items-start gap-s !text-[#434248]\"><span class=\"mt-2 size-2 shrink-0 rounded-full bg-success-100\" aria-hidden=\"true\"\/><span class=\"text-body\">BFId showed standard WiFi routers can track people, raising privacy concerns for homes and businesses<\/span><\/li>\n<li class=\"m-0 flex items-start gap-s !text-[#434248]\"><span class=\"mt-2 size-2 shrink-0 rounded-full bg-success-100\" aria-hidden=\"true\"\/><span class=\"text-body\">IEEE and KIT research points to broader WiFi sensing as regulators and tech firms weigh next steps<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>WiFi used to be the invisible plumbing of modern life, quietly pushing data from router to screen. Research covered by ScienceDaily on 5\/22\/2026 says that same everyday signal can be turned into a near-perfect ID check, recognizing people by reading how radio waves bounce around a room. The work, from Karlsruhe Institute of Technology\u2019s KASTEL Institute of Information Security and Dependability, uses standard off-the-shelf routers as passive sensors, pulling a signature from reflection patterns even if you are not carrying a device and your phone is off. In tests summarized by multiple outlets, the system dubbed BFId reportedly hit about 99.5% accuracy across 197 subjects, adding fresh urgency to the privacy question of what ordinary networks in homes and public spaces could quietly reveal.<\/p>\n<h2>WiFi: more than just internet access<\/h2>\n<p>If you\u2019re like me, you probably think of WiFi as the quiet utility in the background: a router on a shelf, a password on a sticky note, and the occasional dead zone. But a May 2026 research write-up made WiFi feel a lot less invisible. In a <a href=\"https:\/\/www.sciencedaily.com\/releases\/2026\/05\/260522023127.htm\" target=\"_blank\" rel=\"noopener noreferrer\">May 22, 2026<\/a> story, ScienceDaily described how scientists in Germany identified people using only everyday wireless signals.<\/p>\n<h2>The technique: turning reflections into identity<\/h2>\n<p>The work came from the Karlsruhe Institute of Technology (KIT), specifically its <a href=\"https:\/\/wonderfulengineering.com\/ordinary-wifi-can-now-identify-people-with-near-perfect-accuracy\/\" target=\"_blank\" rel=\"noopener noreferrer\">KASTEL Institute of Information Security and Dependability<\/a>. The idea is straightforward but unsettling: standard, off-the-shelf WiFi routers can act like a passive sensing system, because radio waves bounce off bodies and objects and leave behind reflection patterns that can be converted into a signature.<\/p>\n<p>Coverage describes the system as BFId, built around WiFi beamforming feedback data. Reportedly, it hit 99.5% accuracy when identifying people across 197 subjects. Importantly, it does not depend on someone carrying a device, and it can still work even if a phone is turned off.<\/p>\n<h2>When a home network starts to look like surveillance<\/h2>\n<p>The researchers themselves emphasized how reachable this is with common gear: \u201cWe have shown robust identity inference with common-of-the-shelf hardware which is already in widespread adoption in many homes and public areas.\u201d That detail matters for Americans because \u201cspecialized equipment\u201d is usually where cost and deployment friction show up. Here, the hardware is already in apartments, offices, coffee shops, and campuses.<\/p>\n<p>It also goes beyond naming a person. The team showed WiFi signals can reveal whether people are present, where they are located, and what they are doing, a point echoed by coverage describing activity detection in addition to identification, such as in <a href=\"https:\/\/www.zmescience.com\/science\/news-science\/wifi-surveillance-identify-people\/\" target=\"_blank\" rel=\"noopener noreferrer\">phone-off detection<\/a>. How should consumer privacy expectations change if ordinary networking can double as a sensor?<\/p>\n<h2>A line from research into the real world<\/h2>\n<p>This isn\u2019t the first time researchers have tried to identify humans through WiFi. An earlier IEEE conference paper titled \u201cWiFi-ID: Human Identification Using WiFi Signal\u201d explored identification using WiFi signals and gait patterns years before the 2026 KIT work.<\/p>\n<p>What feels different now is the combination of specificity and accessibility: a named system, high reported accuracy, and an explicit acknowledgement that the necessary hardware is already widespread. For US tech companies building smart-home and enterprise networking products, and for regulators who think about covert monitoring, that\u2019s a new set of assumptions to confront.<\/p>\n<\/div>\n<p><a href=\"https:\/\/news.bitcoin.com\/technology\/ordinary-wifi-can-now-identify-people-with-near-perfect-accuracy-49201\/\">Source link <\/a><br \/>\n<br \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Originally posted on : Bitcoin News ) Key Takeaways Karlsruhe Institute of Technology\u2019s BFId identified 197 people with 99.5% accuracy on May 22, 2026 BFId showed standard WiFi routers can track people, raising privacy concerns for homes and businesses IEEE and KIT research points to broader WiFi sensing as regulators and tech firms weigh next [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":76301,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[32],"tags":[],"_links":{"self":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/posts\/76300"}],"collection":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/comments?post=76300"}],"version-history":[{"count":0,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/posts\/76300\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/media\/76301"}],"wp:attachment":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/media?parent=76300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/categories?post=76300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/tags?post=76300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}