Obama signed a new executive order on Wednesday (1 April 2015) authorizing financial sanctions against foreign hackers, and companies that knowingly benefit from cyberattacks against US interests.
A newly released, top-secret document traces the NSA's infiltration of North Korean systems back to 2010, when it piggybacked on South Korean "implants" on North Korea's networks and "sucked back the data".
FBI director James Comey has stuck to the bureau’s conclusion that the North Korean government is behind the mammoth cyber attack on Sony Pictures, giving out a few more crumbs to explain his conviction.