Stuxnet, discovered in 2010, was a sophisticated malware designed to sabotage Iran's nuclear program by targeting Siemens SCADA systems controlling uranium enrichment centrifuges at Natanz. The classified 'Olympic Games' program, begun under Bush and continued under Obama, was confirmed by Snowden in 2013 as a US-Israel joint operation. Stuxnet destroyed approximately 1,000 centrifuges by manipulating their spin speeds while displaying normal readings to operators. It escaped into the wild and was detected by Kaspersky Lab researchers.