The documents also describe a "country-wide" surveillance product called FinFly ISP which promises customers the ability to intercept Internet traffic and masquerade as ordinary websites in order to install malware on a target's computer.
The most recent date-stamp found in the documents is August 2, coincidung with the first tweet by a parody Twitter account, @GammaGroupPR, which first announced the hack and may be run by the hacker or hackers responsible for the leak.
On Reddit, a user called PhineasFisher claimed responsibility for the leak. "Two years ago their software was found being widely used by governments in the middle east, especially Bahrain, to hack and spy on the computers and phones of journalists and dissidents," the user wrote. The name on the @GammaGroupPR Twitter account is also "Phineas Fisher."
GammaGroup, the surveillance company whose documents were released, is no stranger to the spotlight. The security firm F-Secure first reported the purchase of FinFisher software by the Egyptian State Security agency in 2011. In 2012, Bloomberg News and The Citizen Lab showed how the company's malware was used to target activists in Bahrain.
In 2013, the software company Mozilla sent a cease-and-desist letter to the company after a report by The Citizen Lab showed that a spyware-infected version of the Firefox browser manufactured by Gamma was being used to spy on Malaysian activists.