Websites Employ SSD Activity Tracking Techniques

Websites are adopting innovative methods to track visitor behaviors, and a recent development focuses on analyzing interactions with solid-state drives (SSDs). This technique, known as FROST (Fingerprinting Remotely using OPFS-based SSD Timing), enables sites to surveil not just the pages users visit, but also the applications they have running.

The FROST approach leverages a side channel, which is a type of information leak based on physical phenomena. By assessing the performance of SSDs, malicious entities can gain insights into encrypted communications and gather sensitive data.