The arrest was not O'Cearrbhail's first brush with the law. According to the court document, he was arrested in September 2011 on suspicion of hacking the website for the Irish political party Fine Gael.
The court document, which comprises sworn testimony from an FBI agent, also hints that O'Cearrbhail may have had a hand in hacking the website of the U.K. tabloid newspaper The Sun. An individual using the online handle "Palladium" was involved in the July 2011 hack, according to a sworn statement from FBI Special Agent George J. Schultzel, which is included in the charge sheet.
The Sun's website was hacked to redirect visitors to a fake new story that said News Corp. founder Rupert Murdoch had been found dead in his garden after ingesting a "large quantity of palladium."
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