The Busehr Nuclear Power Plant control computers are infected with the Stuxnet worm.
Computer systems at Iran's first nuclear-power plant have been infected with the potent Stuxnet worm capable of taking over their control systems.
The worm, which was discovered in July, seems to have disproportionately hit nuclear facilities in Iran.
James Lewis, a cybersecurity specialist at the Center for Strategic and International Studies in Washington, said that while it isn't clear whether Iran was specifically targeted by the Stuxnet worm, leading suspects in mounting such an attack would include Israel, the U.S., and the U.K. In addition, Russia, France and Germany also would have the capability to conduct this type of attack.
Researchers at the U.S. computer-security company Symantec Corp. found that about 60% of the Stuxnet infections have hit computer systems in Iran, with many systems in Indonesia and India also affected.