Sony has today taken legal action against hackers who broke through the PlayStation 3’s security, potentially exposing the platform to rampant piracy.

Sony Computer Entertainment America has filed a suit against George Hotz (GeoHot), Hector Martin Cantero and Sven Peter (fail0verflow), and one hundred “does”, or unnamed defendants.

Sony contends that the defendants “circumvented effective technological protection measures … employed by SCEA to protect against unauthorized access to and/or copying of … PlayStation 3 computer entertainment systems … and other copyrighted works.”

Hotz, Cantero and Peter have variously created custom firmware and released the PlayStation 3’s root key, allowing anyone to certify any software to run on the PlayStation 3 as if it had been signed by Sony.

In the suit, Sony claims that the defendants “trafficked in circumvention technology, products, services, methods, codes, software tools, devices, component or part thereof, including but not limited to the Elliptic Curve Digital Signature Algorithm Keys, encryption and/or decryption keys, dePKG firmware decrypter program, Signing Tools, 3.55 Firmware Jailbreak, and/or any other technologies that enable unauthorized access to and/or copying of PS3 Systems and other copyrighted works.”

Sony currently seeks a temporary restraining order and an order of impoundment.