(Foreign Policy) -- Abu Ali, a commander of a moderate Syrian rebel group in northern Syria, proudly shows a black laptop partly covered in dust. "We took it this year from an ISIS hideout," he says.
Abu Ali says the fighters from the Islamic State of Iraq and al-Sham (ISIS), which have since rebranded themselves as the Islamic State, all fled before he and his men attacked the building. The attack occurred in January in a village in the Syrian province of Idlib, close to the border with Turkey, as part of a larger anti-ISIS offensive occurring at the time. "We found the laptop and the power cord in a room," he continued, "I took it with me. But I have no clue if it still works or if it contains anything interesting."
As we switched on the Dell laptop, it indeed still worked. Nor was it password-protected. But then came a huge disappointment: After we clicked on "My Computer," all the drives appeared empty.
Appearances, however, can be deceiving. Upon closer inspection, the ISIS laptop wasn't empty at all: Buried in the "hidden files" section of the computer were 146 gigabytes of material, containing a total of 35,347 files in 2,367 folders. Abu Ali allowed us to copy all these files -- which included documents in French, English, and Arabic -- onto an external hard drive.