US Central Command's Twitter account appears to have been hacked by CyberCaliphate, a hacker group claiming association with ISIS.
The Twitter feed has since been taken down, but posted messages included "AMERICAN SOLDIERS, WE ARE COMING, WATCH YOUR BACK. ISIS. #CyberCaliphate", "Pentagon Networks Hacked! China Scenarios", and "Pentagon Networks Hacked. Korean Scenarios". These last two posts came with military maps and information relating to the countries in question.
Centcom’s YouTube account was also hacked, and has since been terminated by Google.
A post on Pastebin says
Pentagon networks hacked
WE ARE COMING, WATCH YOUR BACK. ISIS. #CyberCaliphate
In the name of Allah, the Most Gracious, the Most Merciful, the CyberCaliphate under the auspices of ISIS continues its CyberJihad. While the US and its satellites kill our brothers in Syria, Iraq and Afghanistan we broke into your networks and personal devices and know everything about you.
You'll see no mercy infidels. ISIS is already here, we are in your PCs, in each military base. With Allah's permission we are in CENTCOM now.
We won't stop! We know everything about you, your wives and children.
U.S. soldiers! We're watching you!
Here's a part of confidential data from your mobile devices:
There is no God but Allah and Muhammad is his Prophet! There is no law but Sharia!
US Centcom is reportedly preparing a statement on the situation and we will update this story once we have it.
The hack occurred as President Barack Obama was finishing a major speech on cybersecurity. The timing is unlikely to be coincidental, and designed to cause maximum embarrassment.