US, Israel behind Stuxnet cyber attack, says Iran 18 Apr 2011 The US and Israel are behind the computer worm Stuxnet that infiltrated Iran's nuclear program, state news agency IRNA reported Saturday, quoting a military officer. "Investigations and studies show that the source of Stuxnet originates from America and Israel," the commander of the Iranian civil defense organization, Gholam Reza Jalali, said. German computer experts and some Western media reports had originally pointed the finger at the US and Israel.