{"id":319930,"date":"2021-08-10T01:01:53","date_gmt":"2021-08-09T22:01:53","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/bizarre-glowworm-attack-captures-audio-from-devices-power-leds-review-geek\/"},"modified":"2021-08-10T01:01:53","modified_gmt":"2021-08-09T22:01:53","slug":"bizarre-glowworm-attack-captures-audio-from-devices-power-leds-review-geek","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/bizarre-glowworm-attack-captures-audio-from-devices-power-leds-review-geek\/","title":{"rendered":"#Bizarre \u201cGlowworm Attack\u201d Captures Audio from Devices\u2019 Power LEDs \u2013 Review Geek"},"content":{"rendered":"<p><strong>&#8220;#Bizarre \u201cGlowworm Attack\u201d Captures Audio from Devices\u2019 Power LEDs \u2013 Review Geek&#8221;<\/strong><\/p>\n<div id=\"article-content-area\">\n<figure style=\"width: 1920px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"type:primaryImage wp-image-94542 size-full\" srcset=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2021\/08\/bf3f4bca.png?width=400 400w, https:\/\/www.reviewgeek.com\/p\/uploads\/2021\/08\/bf3f4bca.png?width=1200 1200w\" sizes=\"auto, 400w, 1200w\" src=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2021\/08\/bf3f4bca.png?width=1200\" alt=\"An electro-optical sensor pointed at a USB hub's power indicator.\" width=\"1920\" height=\"1080\" data-crediturl=\"https:\/\/www.nassiben.com\/glowworm-attack\" data-credittext=\"Cyber@BGU\" onload=\"pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\" onerror=\"this.onerror=null;pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\"\/><figcaption class=\"wp-caption-text\">An electro-optical sensor (red) pointed at a USB hub\u2019s power indicator (yellow). <span class=\"type:primaryImage imagecredit\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nassiben.com\/glowworm-attack\">Cyber@BGU<\/a><\/span><\/figcaption><\/figure>\n<p>If you were a spy, what would be your go-to method of eavesdropping on conversations? A microphone is just too easy, so maybe you\u2019ll try something more high-tech, like a <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nassiben.com\/glowworm-attack\">Glowworm Attack<\/a>. Discovered by researchers at Ben-Gurion University, the Glowworm Attack allows spies to capture audio by pointing a special camera at a speaker or USB hub\u2019s power indicator LED.<\/p>\n<p>Optical eavesdropping is a strange technique that\u2019s growing more viable thanks to AI, which can teach itself how to interpret data. But unlike most optical eavesdropping methods, which observe <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/news.mit.edu\/2014\/algorithm-recovers-speech-from-vibrations-0804\">how objects vibrate<\/a> when they\u2019re impacted by sound waves, the Glowworm Attack translates the imperceptible flickering of a device\u2019s power indicator LED into real sound.<\/p>\n<p><iframe loading=\"lazy\" title=\"Glowworm Attack: Optical TEMPEST Sound Recovery via a Device\u2019s Power Indicator LED\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/z4-OFLTHtiw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Most power LEDs are wired directly to their device\u2019s main power line. As such, they\u2019re easily influenced by any changes in voltage. Researchers at Ben-Gurion University found that, by recording a desktop speaker\u2019s power LED with an electro-optical sensor, they could measure the imperceptible changes in luminescence and translate these changes into whatever audio the speakers were playing.<\/p>\n<p>With some help from a telescope, Glowworm Attacks work at a distance over 100 feet. You can even perform a Glowworm Attack through glass, or recover audio from devices that aren\u2019t speakers, such as USB hubs.<\/p>\n<p>The average person doesn\u2019t need to worry about Glowworm Attacks. Not just because traditional eavesdropping methods are easier, but because the Glowworm method only recovers audio from speakers and other electronics. That said, big businesses and governments shouldn\u2019t ignore Glowworm Attacks, as they could be used to capture the contents of a top-secret video meeting or phone call.<\/p>\n<p><small>Source: <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nassiben.com\/glowworm-attack\">Cyber Security Labs at Ben Gurion University<\/a> via <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/arstechnica.com\/gadgets\/2021\/08\/new-glowworm-attack-recovers-audio-from-devices-power-leds\/\">Ars Technica<\/a><\/small>\n<\/div>\n<p><script>\nsetTimeout(function(){\n  !function(f,b,e,v,n,t,s)\n  {if(f.fbq)return;n=f.fbq=function(){n.callMethod?\n  n.callMethod.apply(n,arguments):n.queue.push(arguments)};\n  if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';\n  n.queue=[];t=b.createElement(e);t.async=!0;\n  t.src=v;s=b.getElementsByTagName(e)[0];\n  s.parentNode.insertBefore(t,s)}(window, document,'script',\n  'https:\/\/connect.facebook.net\/en_US\/fbevents.js');\n  fbq('init', '1137093656460433');\n  fbq('track', 'PageView');\n  },3000);\n<\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/www.reviewgeek.com\/94536\/bizarre-glowworm-attack-captures-audio-from-devices-power-leds\/\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;#Bizarre \u201cGlowworm Attack\u201d Captures Audio from Devices\u2019 Power LEDs \u2013 Review Geek&#8221; An electro-optical sensor (red) pointed at a USB hub\u2019s power indicator (yellow). Cyber@BGU If you were a spy, what would be your go-to method of eavesdropping on conversations? A microphone is just too easy, so maybe you\u2019ll try something more high-tech, like a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":319931,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.reviewgeek.com\/p\/uploads\/2021\/08\/bf3f4bca.png","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-319930","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/319930","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=319930"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/319930\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/319931"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=319930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=319930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=319930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}