UPDATE: Kaspersky has clarified that the International Space Station was not infected with Stuxnet. In a statement the company said:
"On November 7, while talking with the press after his speech at the National Press Club of Australia, Eugene Kaspersky, illustrating how a network with no Internet connection might still get infected, mentioned an incident from 2008 in which computers on the International Space Station (ISS) were infected.
That infection had nothing to do with the Stuxnet worm. The computers of the ISS were infected with a virus known as Gammima.AG, or Trojan-GameThief.Win32.Magania – as per Kaspersky Lab’s classification. It is assumed that the virus got onboard the ISS via USB sticks or optical disks. ."
Sometime in the last decade the US and Israel (probably) developed a computer virus dubbed Stuxnet to attack Iran's nuclear facilities (almost certainly).
And then it went rogue.
Although it hit its intended target it was reported this week that it may have infected a a Russian nuclear power plant and even the International Space Station (ISS).
Eugene Kaspersky, head of the anti-virus firm that bears his name, told reporters in Australia last week that viruses often have unintended consequences.
However initial reports that the ISS was infected with Stuxnet are untrue, the company has since clarified.
Kaspersky was quoted as saying: "Everything you do is a boomerang. It will get back to you.... Unfortunately, it’s very possible that other nations which are not in a conflict will be victims of cyber attacks on critical infrastructure."
Stuxnet was a virulent and highly targeted cyber attack which shut down more than 1,000 Iranian centrifuges used to enrich Uranium.