Sealed court documents obtained by the Daily Dot and Motherboard, however, reveal that the attack was instigated and orchestrated not by Hammond, but by an informant, with the full knowledge of the Federal Bureau of Investigation (FBI).
In addition to directly facilitating the breach, the FBI left Stratfor and its customers—which included defense contractors, police chiefs, and National Security Agency employees—vulnerable to future attacks and fraud, and it requested knowledge of the data theft to be withheld from affected customers. This decision would ultimately allow for millions of dollars in damages.
The documents also confirm the integral role of a shadowy hacker, operating under the handle “Hyrriiya,” who provided key access for the now-infamous attack.
How an FBI informant helped Anonymous hack Brazil