Feds intensify probe into leaks of classified data related to Stuxnet computer virus
Federal investigators looking into disclosures of classified information about a cyberoperation that targeted Iran's nuclear program have increased pressure on current and former senior government officials suspected of involvement, according to people familiar with the investigation.
The inquiry, which was started by Attorney General Eric Holder last June, is examining leaks about a computer virus developed jointly by the United States and Israel that damaged nuclear centrifuges at Iran's primary uranium-enrichment plant. The U.S. code name for the operation was Olympic Games, but the wider world knew the mysterious computer worm as Stuxnet.
Prosecutors are pursuing “everybody — at pretty high levels, too,” said one person familiar with the investigation. “There are many people who've been contacted from different agencies.”
The FBI and prosecutors have interviewed several current and former senior government officials in connection with the disclosures, sometimes confronting them with evidence of contact with journalists, according to people familiar with the probe. Investigators, they said, have conducted extensive analysis of the email accounts and phone records of current and former government officials in a search for links to journalists.
The people familiar with the investigation would speak only on the condition of anonymity because of the sensitivity of the matter. The Justice Department declined to comment.
The Obama administration has prosecuted six officials for disclosing classified information, more than all previous administrations combined. But the Stuxnet investigation is arguably the highest-profile probe yet, and it could implicate senior-level officials. Knowledge of the virus was likely to have been highly compartmentalized and limited to a small set of Americans and Israelis.
The proliferation of email and the advent of sophisticated software capable of sifting through huge volumes of it have significantly improved the ability of the FBI to find evidence. A trail of email has eased the FBI's search for a number of suspects recently, including John Kiriakou, the former CIA officer from New Castle who was sentenced Friday to 30 months in prison for disclosing to a journalist the identity of a CIA officer who had spent 20 years under cover.
Holder appointed Rod J. Rosenstein, the U.S. attorney for Maryland, to lead the Stuxnet inquiry after a New York Times article about President Obama ordering cyberattacks against Iran using a computer virus developed in conjunction with Israel. Other publications, including The Washington Post, followed with similar reports about Stuxnet and a related virus called Flame.
At the same time, Holder named Ronald C. Machen Jr., the U.S. attorney for the District of Columbia, to head a criminal investigation into leaks concerning the disruption of a bomb plot by al-Qaida in the Arabian Peninsula. Holder's action followed complaints from members of Congress, including the heads of the intelligence committees, about both leaks.
Machen is examining a leak to the Associated Press that a double agent inside al-Qaida's affiliate in Yemen allowed the United States and Saudi Arabia to disrupt the plot to bomb an airliner using explosives and a detonation system that could evade airport security checks.
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