A hacker using the handle "Phineas Fisher" has described how he hacked into surveillance software maker Hacking Team. Hacking Team is an Italian firm that hacks to order, primarily for law enforcement agencies and intelligence agencies. Last summer, Phineas Fisher (now going by the alias Hack Back!) on Twitter broke into Hacking Team and stole and published thousands of internal documents, some source code and several 0-day exploits.