The alleged author of the huge breach against Hacking Team in which 400 Gb of data were leaked, has come out of stealth, posting a series of tweets in which he claimed responsibility for the attack:
gamma and HT down, a few more to go 🙂
— Hack Back! (@GammaGroupPR) July 6, 2015
You are right, this name is not new, and as the tweet suggests, this is the same actor who, on August 2014, breached Gamma International, the company behind FinFisher, yet another surveillance software in direct competition with Hacking Team.
In a brief statement left to Motherboard, the attacker has confirmed to be the same person, however, for the moment, he has not unveiled further details on how the attack was carried on. This could happen soon since apparently his intention is to wait for Hacking Team to be definitively out of business.
I'll writeup how hacking team got hacked once they've had some time to fail at figuring out what happened and go out of business
— Hack Back! (@GammaGroupPR) July 7, 2015
This rules out the speculations that were made immediately after the massive leak (not ‘some random guy’ but an “organization,” either a criminal group or maybe even a government, or also a competitor.
Now I obviously wonder who ‘the few more to go’ will be…