09/23/2010 06:05 am ET Updated May 25, 2011

Pearce Delphin, Australian Teen, Takes Responsibility For Twitter Mouseover Attack

An Australian teenager has become an overnight Internet celebrity for admitting that he was the mastermind behind the "mouseover" attack that led to Tuesday's Twitter mayhem.

Pearce Delphin, 17, from Melbourne, Australia, said he exposed a security flaw on the micro-blogging site that other malicious hackers then exploited to send thousands of users to porn and other potentially unsavory websites.

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