It seems that a few of Crytek's websites have gone offline, and it's believed that external intrusion (aka hackers) have invaded them.
Crydev.net, Crytek.com, Mycryengine.com, and MyCrysis.com are all displaying the message seen above. Meanwhile, GFACE.com, Crysis.com, and Warface.com are running normally.
Expect email from Crytek suggesting users change their site passwords.