Breaking News: Sony Hack Is US Security Issue Says White House.

The cyber attack on Sony Pictures that forced the cancellation of a
film release is being treated as a national security matter, the White House says.
Spokesman Josh Earnest says the US believes the hacking is the work of a "sophisticated actor" - but refused to confirm if North Korea was responsible.
Sony withdrew The Interview, a new comedy film about North Korea's leader, after threats from hackers.
Hackers have already released sensitive information stored on Sony computers.
Source:BBC