Israel and U.S. collaborated in the development of a computer virus that sabotaged nuclear centrifuges to Iran and a slowdown in its ability to develop a nuclear weapon, the New York Times reported Sunday. The report quoted intelligence and military experts and officials say that the effort to create the worm Stuxnet was a joint US-Israeli project, which also had the cooperation of Britain and Germany. Israel has tested the effectiveness of the virus its nuclear complex at Dimona in the Negev desert.
Source: https://thehackernews.com/2011/01/israel-tested-for-virus-linked-to-irans.html