{"id":68574,"date":"2026-06-15T16:10:22","date_gmt":"2026-06-15T21:10:22","guid":{"rendered":"https:\/\/www.pcmatic.com\/blog\/?p=68574"},"modified":"2026-07-27T13:26:09","modified_gmt":"2026-07-27T18:26:09","slug":"frost-cyber-threat-ssd-tracking","status":"publish","type":"post","link":"https:\/\/www.pcmatic.com\/blog\/frost-cyber-threat-ssd-tracking\/","title":{"rendered":"Is Your Solid State Drive Spying on You? The Silent FROST Threat"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">When we think of cyber threats, we usually picture hackers actively trying to steal our passwords, lock our files, or break into our bank accounts. But security researchers have recently uncovered a new tracking method that doesn\u2019t do any of those things, and that\u2019s exactly what makes it so hard to catch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It&#8217;s called <strong>FROST<\/strong>, and it\u2019s a tracking tactic that Big Tech and major browser developers are currently ignoring.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is what you need to know about this new threat, and how you can make sure your privacy stays protected.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What is the FROST Cyber Threat?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>FROST<\/strong> stands for <em>Fingerprinting Remotely using OPFS-based SSD Timing<\/em>. FROST turns your computer\u2019s own solid-state drive into a tracking sensor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is how it works in those everyday scenarios:<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>The Setup:&nbsp;<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">A compromised website, such as an everyday weather or news page, is left open in a background tab. It launches a hidden script using legitimate browser web standards (OPFS) to bypass all security measures.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">The Tracking:<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The script then tracks the response times of your Solid-State Drive (SSD). It monitors the tiny fractions of a second it takes your drive to process data.&nbsp;<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">The Result:<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">By analyzing this timing data, attackers can identify the websites and applications you access, when you access them, and how long they are running with stunning accuracy. Beyond tracking every move you make, it can also take data off the SSD and send it back to the compromised website.&nbsp;<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">The Threat:<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Colin Vaughn, a software developer at PC Matic, breaks it down like this:&nbsp;<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>&#8220;Let&#8217;s say you&nbsp;regularly visit a legitimate weather website every morning, but&nbsp;it is compromised with a FROST script. FROST learns you always launch your banking portal around the same time each morning. The attacker uses that information to then present a convincing \u201csecurity alert\u201d or fake login page precisely when you are expecting to access your account. Unbeknownst to you, you input your banking credentials into the fake login instead of the legitimate one.&nbsp;Now the hackers have access to your online bank account.\u201d<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">FROST is known as a &#8220;passive side-channel attack.&#8221; It doesn\u2019t need to hack into your computer; it just sits quietly in the background, listening to how your hardware naturally behaves to spy on your daily habits.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Why Traditional Security is Missing It<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Because FROST exploits standard, legitimate web features to do its dirty work, it completely bypasses traditional firewalls and antivirus software. Standard security programs don&#8217;t see anything &#8220;wrong&#8221; happening, so they don&#8217;t block it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Even worse, no traditional VPN currently on the market is equipped to address this specific vulnerability, and Big Tech browser developers are leaving the window wide open.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As Colin Vaughn, a Software Developer at PC Matic, explains:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\" style=\"padding-right:0;padding-left:0\"><em>&#8220;The team at PC Matic is working hard to expand privacy protections beyond conventional VPN capabilities. Our goal is to know everything we can about innovative threats like FROST and respond quickly and with precision.&#8221;<\/em><\/p>\n<\/blockquote>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">The Good News: PC Matic VPN Users Are Safe<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If reading about a silent, undetectable tracker makes you nervous, take a deep breath.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">1. Ultimate Protection with PC Matic VPN <\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">If you are using the <a href=\"https:\/\/pcmatic.com\/vpn\">PC Matic VPN,<\/a> you are fully protected from the FROST attack. While other traditional VPNs have left this window wide open for trackers to exploit, PC Matic has engineered specific, innovative solutions designed to block OPFS and SSD tracking methods like FROST. You don&#8217;t need to change your browsing habits or worry about closing every single tab while you wait at the airport.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">2. Stop Threats at the Door with PC Matic Browser Security<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">To fully lock down your browsing experience, pair your VPN protection with <strong>PC Matic Browser Security<\/strong>. This powerful ad-blocker extension is available for Google Chrome and Microsoft Edge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While the VPN handles complex tracking threats like FROST underneath the hood, the Browser Security extension actively cleans up what you see on the surface. It stops annoying ads, blocks intrusive trackers, and shields you from malicious scams before they can even load in your browser.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By cleaning up malicious web elements, you reduce the chances of ever landing on a page capable of launching a FROST attack. Ready to take control of your internet experience? You can learn exactly how to <a href=\"https:\/\/www.pcmatic.com\/blog\/enhance-your-browsing-experience-with-pc-matic-ad-blocker\/\" target=\"_blank\" rel=\"noreferrer noopener\">enhance your browsing experience with PC Matic&#8217;s browser security<\/a> and keep your digital life clean and safe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With PC Matic running the defense, your privacy remains exactly what it should be: completely private.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When we think of cyber threats, we usually picture hackers actively trying to steal our passwords, lock our files, or break into our bank accounts. But security researchers have recently uncovered a new tracking method that doesn\u2019t do any of those things, and that\u2019s exactly what makes it so hard to catch. It&#8217;s called FROST, [&hellip;]<\/p>\n","protected":false},"author":83,"featured_media":68576,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[6223],"tags":[],"class_list":["post-68574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scam-alert"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Is Your Solid State Drive Spying on You? 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