George W Bush
Former US Secretary of State Colin Powell is the latest public figure to have fallen victim to hackers, with a series of out-of-character messages posted to his Facebook page.
A hacker using the alias "Guccifer" has claimed responsibility for hacking the Bushes, aka the political family that gave the US its 41st president (George H.W. Bush) and its 43rd president (George W. Bush).
Federal investigators in the US are tightening the screws on former senior government officials who might have leaked info about the Stuxnet worm.
The Stuxnet virus was created by the USA to target an Iranian nuclear facility, but accidentally escaped into the wider world, claims the New York Times.