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HSTS supercookie tracking | Breaking Cybersecurity News | The Hacker News
Apple Blocks Sites From Abusing HSTS Security Standard to Track Users
Mar 20, 2018
If you are unaware, the security standard HTTP Strict Transport Security (HSTS) can be abused as a 'supercookie' to surreptitiously track users of almost every modern web browser online without their knowledge even when they use "private browsing." Apple has now added mitigations to its open-source browser infrastructure WebKit that underpins its Safari web browser to prevent HSTS abuse after discovering that theoretical attacks demonstrated in 2015 were recently deployed in the wild against Safari users. HSTS—HTTP Strict Transport Security—is a great feature that allows websites to automatically redirects user's web traffic to secure page connections over HTTPS if the user accidentally opens an insecure URL and then remembers to route that user to the secure connection always. Since HSTS does not allow websites to store any information/value on users web browser except remembering the redirect information about turning it on/off for future use, using
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