Researchers found a way to spy on your browsing by watching your SSD's activity

May 30, 2026 - 04:10
Updated: 1 month ago
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Diagram illustrating how SSD timing differences reveal tracked browsing activity

The method, known as FROST – short for "fingerprinting remotely using OPFS-based SSD timing" – focuses on how different processes compete for storage access. That competition leaves behind small but measurable timing differences. By monitoring those timing shifts, the research team was able to determine which other sites and applications...

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Christopher Holloway

Christopher Holloway is the founder and director of Progressive Robot, a UK-based technology company. A full-stack engineer with more than two decades of experience, he works across PHP development, ecommerce, Linux infrastructure, technical SEO and AI automation, and writes here on technology, AI, hardware and software.

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