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Twitter XSS worm

An XSS worm has hit twitter this morning and appears to have affected hundreds of thousands of users. Sophos has a good technical writeup at http://www.sophos.com/blogs/gc/g/2010/09/21/twitter-onmouseover-security-flaw-widely-exploited/

ARSTechnica has some coverage about Magnus Holm, the author of the worm.

I'll update this post once a more accurate count of affected users is published.


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Twitter has been hacked... I would say: Again?...