America’s latest problem with security leaks comes not from low-ranking soldiers or mischievous subcontractors.  The retired second-highest officer in the United States Military is under investigation over a politically sensitive leak of classified information about a covert U.S. cyber attack on Iran’s nuclear program.

Retired Marine four-star General James “Hoss” Cartwright is the former vice chairman of the Joint Chiefs of Staff.  He’s under investigation for allegedly leaking information about a massive attack using a computer virus named Stuxnet on Iran’s nuclear facilities.

Last year, the New York Times reported that Cartwright was the head of Operation Olympic Games, an increasingly sophisticated series of attacks on the computer systems in Iran’s main nuclear enrichment facilities.  America’s first known sustained use of cyberweapons was begun in the Bush administration, but reportedly expanded by President Barack Obama.

When the story came out complete with details about Israel’s cooperation and the way the virus got into the Iranian computer systems, American officials called for investigations into how that information got out.  That investigation began with the White House, but zeroed in on Cartwright.

The US Justice Department and White House are not commenting on the report.