{"id":12993,"date":"2018-09-17T14:36:13","date_gmt":"2018-09-17T14:36:13","guid":{"rendered":"http:\/\/c226f28a-cdf6-4a89-91c1-ce74b93bbd13"},"modified":"2018-09-17T14:36:13","modified_gmt":"2018-09-17T14:36:13","slug":"ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons\/","title":{"rendered":"Ordinary WiFi devices can be used to detect suspicious luggage, bombs, weapons"},"content":{"rendered":"<p>WiFi signals from ordinary WiFi equipment can be used to detect suspicious objects, such as bombs or weapons, inside people&#8217;s bags or luggage, at schools, stadiums, museums, malls, or other public spaces.<\/p>\n<p>Researchers from Rutgers University say they&#8217;ve developed and tested such a system, achieving above 90 percent detection rates for suspicious objects hidden inside various types of containers.<\/p>\n<p>Their system works by using a radio signal called CSI (Channel State Information). CSI signals are part of the WiFi protocol and are used to record general information about the status of the WiFi signal.<\/p>\n<p>The Rutgers team say they discovered that by reading the CSI data from WiFi signals that have bounced off or went through objects in a room or open space, they can determine the nature and size of that respective object.<\/p>\n<p>They say this data is accurate enough to be used for a scanner-like system that looks for potentially dangerous objects, such as various types of liquids containers, often found inside portable bombs, or weapons such as knives, guns, or grenades.<\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/zdnet4.cbsistatic.com\/hub\/i\/2018\/09\/17\/9ce24053-425a-43bc-abec-38d52c25d54b\/9f9d4efe4be074231c46b15c0a2c8fb3\/wifi-csi-setup.png\" class=\"\" alt=\"wifi-csi-setup.png\"\/><\/span> <\/p>\n<p>&#8220;Extensive experiments [were] conducted with 15 metal and liquid objects and 6 types of bags in a 6-month period,&#8221; Rutgers researchers said.<\/p>\n<p>The research team recorded detection accuracy rates of 99 percent for dangerous objects, 98 percent for metal objects and 95 percent for liquid containers.<\/p>\n<section class=\"sharethrough-top\" data-component=\"medusaContentRecommendation\" data-medusa-content-recommendation-options=\"{&quot;promo&quot;:&quot;promo_ZD_recommendation_sharethrough_top_in_article_desktop&quot;,&quot;spot&quot;:&quot;dfp-in-article&quot;}\">\n<\/section>\n<p>&#8220;For typical backpacks, the accuracy rate exceeds 95 percent and drops to about 90 percent when objects inside bags are wrapped,&#8221; researchers said.<\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons\/\" class=\"lazy\" alt=\"wifi-csi-tested-objects.png\" data-original=\" https:\/\/zdnet4.cbsistatic.com\/hub\/i\/2018\/09\/17\/be961581-39c6-4cd3-89cf-ad9568e677ed\/3654d6084fc8fa5f5dec16302d43755b\/wifi-csi-tested-objects.png\"\/><\/span><noscript><\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/zdnet4.cbsistatic.com\/hub\/i\/2018\/09\/17\/be961581-39c6-4cd3-89cf-ad9568e677ed\/3654d6084fc8fa5f5dec16302d43755b\/wifi-csi-tested-objects.png\" class=\"\" alt=\"wifi-csi-tested-objects.png\"\/><\/span><\/p>\n<p><\/noscript><\/p>\n<p>There are advantages and disadvantages to this method. The main advantage is accessibility.<\/p>\n<p>This detection system does not rely on using custom or highly expensive hardware. Ordinary, off-the-shelve WiFi equipment is enough.<\/p>\n<p>A WiFi device with two to three antennas is more than capable for the scanning procedures. The device can be integrated into existing WiFi networks, and placed near access doors or entry gates to scan persons entering a building.<\/p>\n<p>If the WiFi device detects certain patterns in CSI signals, it can alert a nearby laptop.<\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons\/\" class=\"lazy\" alt=\"wifi-csi-scans.png\" height=\"auto\" width=\"370\" data-original=\" https:\/\/zdnet2.cbsistatic.com\/hub\/i\/r\/2018\/09\/17\/d48268a6-b400-4598-b8c4-d9a39e58dc1f\/resize\/370xauto\/e07f58d152cc5031d125f991b0067006\/wifi-csi-scans.png\"\/><\/span><noscript><\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/zdnet2.cbsistatic.com\/hub\/i\/r\/2018\/09\/17\/d48268a6-b400-4598-b8c4-d9a39e58dc1f\/resize\/370xauto\/e07f58d152cc5031d125f991b0067006\/wifi-csi-scans.png\" class=\"\" alt=\"wifi-csi-scans.png\" height=\"auto\" width=\"370\"\/><\/span><\/p>\n<p><\/noscript> <span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons\/\" class=\"lazy\" alt=\"wifi-csi-scan-results.png\" height=\"auto\" width=\"370\" data-original=\" https:\/\/zdnet1.cbsistatic.com\/hub\/i\/r\/2018\/09\/17\/0b5b791d-ace0-46c4-9370-66c97c413b27\/resize\/370xauto\/252bdc0c6af7be373a3f4820da1fa910\/wifi-csi-scan-results.png\"\/><\/span><noscript><\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/zdnet1.cbsistatic.com\/hub\/i\/r\/2018\/09\/17\/0b5b791d-ace0-46c4-9370-66c97c413b27\/resize\/370xauto\/252bdc0c6af7be373a3f4820da1fa910\/wifi-csi-scan-results.png\" class=\"\" alt=\"wifi-csi-scan-results.png\" height=\"auto\" width=\"370\"\/><\/span><\/p>\n<p><\/noscript> <span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons\/\" class=\"lazy\" alt=\"wifi-csi-scan-patterns.png\" height=\"auto\" width=\"370\" data-original=\" https:\/\/zdnet3.cbsistatic.com\/hub\/i\/r\/2018\/09\/17\/10911c6c-62c0-468f-a058-427481a0a478\/resize\/370xauto\/7ed384afdbee7de652af222d75b4ae32\/wifi-csi-scan-patterns.png\"\/><\/span><noscript><\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/zdnet3.cbsistatic.com\/hub\/i\/r\/2018\/09\/17\/10911c6c-62c0-468f-a058-427481a0a478\/resize\/370xauto\/7ed384afdbee7de652af222d75b4ae32\/wifi-csi-scan-patterns.png\" class=\"\" alt=\"wifi-csi-scan-patterns.png\" height=\"auto\" width=\"370\"\/><\/span><\/p>\n<p><\/noscript><\/p>\n<p>The disadvantage is that this system does not produce visual representations of the suspicious objects it detects, such as the ones produces by X-ray and CT scanners found in airports. This means that at least one staff member must be present on location and follow through on the system&#8217;s detections with a manual search of the flagged bag.<\/p>\n<p>But such a disadvantage is negligible, researchers feel. In an <a href=\"https:\/\/newyork.cbslocal.com\/2018\/08\/16\/wi-fi-detects-bombs-explosives-rutgers-research\/\" target=\"_blank\" rel=\"noopener noreferrer\">interview with CBS New York<\/a>, the Rutgers team estimated the total cost of such a system to be below $100. This small cost should outweigh the need to have a staff member check suspicious bags when compared to the tens of thousands of dollars and the number of personnel needed to operate larger equipment such as X-ray scanning machines.<\/p>\n<p>&#8220;In large public areas, it&#8217;s hard to set up expensive screening infrastructure like what&#8217;s in airports,&#8221; said Yingying (Jennifer) Chen, one of the study&#8217;s authors.<\/p>\n<p>&#8220;Manpower is always needed to check bags and we wanted to develop a complementary method to try to reduce manpower,&#8221; she added.<\/p>\n<p>Researchers hope that their systems could be used in public institutions and prevent many of the mass-shooting events that have been plaguing the US in recent years. The system is not foolproof, as no such system is, but it&#8217;s bettern than nothing.<\/p>\n<p><strong>More: <a href=\"https:\/\/www.zdnet.com\/article\/sonarsnoop-attack-can-steal-smartphone-unlock-patterns\/\" target=\"_blank\">SonarSnoop attack can steal smartphone unlock patterns<\/a><\/strong><\/p>\n<p>More details about this novel technique are available in a research paper published in late August, entitled &#8220;I<a href=\"http:\/\/www.winlab.rutgers.edu\/~yychen\/papers\/Towards%20In%20baggage%20Suspicious%20Object%20Detection%20Using%20Commodity%20WiFi.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">n-baggage Suspicious Object Detection Using Commodity WiFi<\/a>.&#8221; Academics from Purdue and Binghamton University also contributed.<\/p>\n<p>The team research paper received the <a href=\"http:\/\/www.winlab.rutgers.edu\/~yychen\/cns18_bestpaper1.jpeg\" target=\"_blank\" rel=\"noopener noreferrer\">Best Paper Award<\/a> in the IEEE International Communications and Network Security (CNS 2018) held back in May.<\/p>\n<p>This research continues <a href=\"https:\/\/www.zdnet.com\/article\/wi-fi-can-detect-movement-through-walls\/\" target=\"_blank\">previous work<\/a> from the start of the 2010s when academics started experimenting with using WiFi signals to detect a person&#8217;s movement and position through walls, research that <a href=\"https:\/\/motherboard.vice.com\/en_us\/article\/a3aaqp\/mit-device-uses-wifi-to-see-through-walls-and-track-your-movements\" target=\"_blank\" rel=\"noopener noreferrer\">got more accurate<\/a> as time went by.<\/p>\n<p>READ MORE <a href=\"https:\/\/www.zdnet.com\/article\/ordinary-wifi-devices-can-be-used-to-detect-suspicious-luggage-bombs-weapons\/#ftag=RSSbaffb68\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers turn ordinary WiFi devices in rudimentary scanners that can identify potentially dangerous objects hidden inside bags or luggage.<br \/>\nREAD MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":12994,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[62],"tags":[],"class_list":["post-12993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdnet-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ordinary WiFi devices can be used to detect suspicious luggage, bombs, weapons 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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