Texas A&M researchers have provided the first concrete evidence that websites actively use browser fingerprinting to track users across sessions and sites. Browser fingerprinting creates unique digital signatures from device information like screen resolution and time zone, making it harder to detect than cookies. The study developed FPTrace, a framework that correlates fingerprinting with ad bidding behavior, revealing that tracking continues even after users clear cookies or opt out under privacy laws like GDPR and CCPA. The findings highlight significant gaps in current privacy protections and call for stronger browser defenses and regulatory oversight.
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