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WASHINGTON -- Militants in Iraq have used $26 off-the-shelf software to intercept live video feeds from U.S. Predator drones, potentially providing them with information they need to evade or monitor U.S. military operations.
Senior defense and intelligence officials said Iranian-backed insurgents intercepted the video feeds by taking advantage of an unprotected communications link in some of the remotely flown planes' systems. Shiite fighters in Iraq used software programs such as SkyGrabber -- available for as little as $25.95 on the Internet -- to regularly capture drone video feeds, according to a person familiar with reports on the matter.
U.S. officials say there is no evidence that militants were able to take control of the drones or otherwise interfere with their flights. Still, the intercepts could give America's enemies battlefield advantages by removing the element of surprise from certain missions and making it easier for insurgents to determine which roads and buildings are under U.S. surveillance.
The drone intercepts mark the emergence of a shadow cyber war within the U.S.-led conflicts overseas. They also point to a potentially serious vulnerability in Washington's growing network of unmanned drones, which have become the American weapon of choice in both Afghanistan and Pakistan.
The Obama administration has come to rely heavily on the unmanned drones because they allow the U.S. to safely monitor and stalk insurgent targets in areas where sending American troops would be either politically untenable or too risky.
The stolen video feeds also indicate that U.S. adversaries continue to find simple ways of counteracting sophisticated American military technologies.
U.S. military personnel in Iraq discovered the problem late last year when they apprehended a Shiite militant whose laptop contained files of intercepted drone video feeds. In July, the U.S. military found pirated drone video feeds on other militant laptops, leading some officials to conclude that militant groups trained and funded by Iran were regularly intercepting feeds.
In the summer 2009 incident, the military found "days and days and hours and hours of proof" that the feeds were being intercepted and shared with multiple extremist groups, the person said. "It is part of their kit now."
A senior defense official said that James Clapper, the Pentagon's intelligence chief, assessed the Iraq intercepts at the direction of Defense Secretary Robert Gates and concluded they represented a shortcoming to the security of the drone network.
"There did appear to be a vulnerability," the defense official said. "There's been no harm done to troops or missions compromised as a result of it, but there's an issue that we can take care of and we're doing so."
Senior military and intelligence officials said the U.S. was working to encrypt all of its drone video feeds from Iraq, Afghanistan and Pakistan, but said it wasn't yet clear if the problem had been completely resolved.
Some of the most detailed evidence of intercepted feeds has been discovered in Iraq, but adversaries have also intercepted drone video feeds in Afghanistan, according to people briefed on the matter. These intercept techniques could be employed in other locations where the U.S. is using pilotless planes, such as Pakistan, Yemen and Somalia, they said.
The Pentagon is deploying record numbers of drones to Afghanistan as part of the Obama administration's troop surge there. Lt. Gen. David Deptula, who oversees the Air Force's unmanned aviation program, said some of the drones would employ a sophisticated new camera system called "Gorgon Stare," which allows a single aerial vehicle to transmit back at least 10 separate video feeds simultaneously.
Gen. Deptula, speaking to reporters Wednesday, said there were inherent risks to using drones since they are remotely controlled and need to send and receive video and other data over great distances. "Those kinds of things are subject to listening and exploitation," he said, adding the military was trying to solve the problems by better encrypting the drones' feeds.
The potential drone vulnerability lies in an unencrypted downlink between the unmanned craft and ground control. The U.S. government has known about the flaw since the U.S. campaign in Bosnia in the 1990s, current and former officials said. But the Pentagon assumed local adversaries wouldn't know how to exploit it, the officials said.
Last December, U.S. military personnel in Iraq discovered copies of Predator drone feeds on a laptop belonging to a Shiite militant, according to a person familiar with reports on the matter. "There was evidence this was not a one-time deal," this person said. The U.S. accuses Iran of providing weapons, money and training to Shiite fighters in Iraq, a charge that Tehran has long denied.
The militants use programs such as SkyGrabber, from Russian company SkySoftware. Andrew Solonikov, one of the software's developers, said he was unaware that his software could be used to intercept drone feeds. "It was developed to intercept music, photos, video, programs and other content that other users download from the Internet -- no military data or other commercial data, only free legal content," he said by email from Russia.
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