{"id":224046,"date":"2026-05-27T20:56:03","date_gmt":"2026-05-27T20:56:03","guid":{"rendered":"https:\/\/ushopwell.com\/ublog\/websites-have-a-new-way-to-spy-on-visitors-analyzing-their-ssd-activity\/"},"modified":"2026-05-27T20:56:03","modified_gmt":"2026-05-27T20:56:03","slug":"websites-have-a-new-way-to-spy-on-visitors-analyzing-their-ssd-activity","status":"publish","type":"post","link":"https:\/\/ushopwell.com\/ublog\/websites-have-a-new-way-to-spy-on-visitors-analyzing-their-ssd-activity\/","title":{"rendered":"Websites have a new way to spy on visitors: analyzing their SSD activity"},"content":{"rendered":"
\n

Over the decades, there has been no shortage of sites using clever techniques to covertly track visitors\u2019 browsing histories<\/a>, device fingerprints<\/a>, and log keystrokes and mouse movements<\/a> in real time. Even Meta and Yandex were recently caught joining in the privacy-invasive free-for-all<\/a>.<\/p>\n

Now sites have a new way to spy on their visitors: measuring subtle interactions with their solid-state drives. The technique, named FROST (fingerprinting remotely using OPFS-based SSD timing), allows sites to monitor other sites a visitor is viewing and what apps are open on their devices.<\/p>\n

A side channel based on contention<\/h2>\n

The technique, laid out in a research paper<\/a>, exploits a side channel<\/a>, a form of leak resulting from physical manifestations such as electromagnetic emanations, data caches, or the time required to complete a task. By measuring the manifestations, attackers can decrypt encrypted traffic and infer other confidential data.<\/p>\n

Read full article<\/a><\/p>\n

Comments<\/a><\/p>\n<\/div>\n

Powered by WPeMatico<\/a><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"

Over the decades, there has been no shortage of sites using clever techniques to covertly track visitors\u2019 browsing histories, device fingerprints, and log keystrokes and mouse movements in real time. Even Meta and Yandex were recently caught joining in the privacy-invasive free-for-all. Now sites have a new way to spy on their visitors: measuring subtle interactions with their solid-state drives. The technique, named FROST (fingerprinting remotely using OPFS-based SSD timing),…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[241],"tags":[],"class_list":["post-224046","post","type-post","status-publish","format-standard","hentry","category-technology"],"yoast_head":"\nWebsites have a new way to spy on visitors: analyzing their SSD activity - UshopWell.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ushopwell.com\/ublog\/websites-have-a-new-way-to-spy-on-visitors-analyzing-their-ssd-activity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Websites have a new way to spy on visitors: analyzing their SSD activity - UshopWell.com\" \/>\n<meta property=\"og:description\" content=\"Over the decades, there has been no shortage of sites using clever techniques to covertly track visitors\u2019 browsing histories, device fingerprints, and log keystrokes and mouse movements in real time. Even Meta and Yandex were recently caught joining in the privacy-invasive free-for-all. Now sites have a new way to spy on their visitors: measuring subtle interactions with their solid-state drives. 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