A group of hackers, known as Inj3ct0r Team, are saying that they've hacked a server that belongs to NATO. They've posted the compromised files, which were confidential files stored on a backup server, onto MediaFire.
According to The Hacker News, the reason Inj3ct0r tapped into NATO was because of the development and financing of nuclear weapons. They hacked the Tomcat 5.5 Server using a 1337day exploit (zero day) and are leaking 2646 files to the public as proof. This is the second time NATO has been hacked since NATO likened Anonymous to Al Qaeda and the Taliban. [The Hacker News via Tech2]