We have been discussing the Downadup worm in another thread; it is also known as Conficker.

London, Feb 08: A virus attack on French military computers has grounded the nation's naval fighter planes after pilots failed to download their flight plans, media reports in France said.........Though Microsoft had warned several months beforehand that the "Conficker" virus, transmitted through Windows, was attacking computers, media reports claimed the French military ignored the warning and failed to take the necessary measures
Merde alors!

More here: