Who Is Responsible?
Attribution is often one of the hardest parts in investigating a data breach. In this case, it remains unclear exactly who the Shadow Broker group is that posted the hacking tools dump. The hacking group was unknown before posting the information, but many groups speculate they are Russian due to the broken English and timing of the posting. Another theory is that the group is actually an NSA insider, like Edward Snowden, as that would make it easier to steal the data involved in the dump.