Someone hacked the cyberweapons arms manufacturer Hacking Team and posted 400 GB of internal company data.
Hacking Team is a pretty sleazy company, selling surveillance software to all sorts of authoritarian governments around the world. Reporters Without Borders calls it one of the enemies of the Internet. Citizen Lab has published many reports about their activities.
Slashdot thread. Hacker News thread.
Tixati bittorrent client http://www.tixati.com/