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Introducing the Invulnerable Evercookie

September 22nd, 2010 09:00 admin Leave a comment Go to comments

An anonymous reader writes “Using eight different techniques and locations, a ‘security’ guy has developed a cookie that is very, very hard to delete. If just one copy of the cookie remains, the other locations are rebuilt. My favorite storage location is in ‘RGB values of auto-generated, force-cached PNGs using HTML5 Canvas tag to read pixels (cookies) back out’ — awesome.”

Source: Introducing the Invulnerable Evercookie

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