US Military Twitter And YouTube Accounts Hacked By A Pro-ISIS Group

The Twitter and YouTube accounts for the U.S. Central Command were hacked by a pro-ISIS group on Monday.
According to BBC, the accounts were subsequently suspended, and investigations are currently ongoing.
The first tweet was reportedly posted at 12:30 p.m ET: “AMERICAN SOLDIERS, WE ARE COMING, WATCH YOUR BACK. ISIS.”
Afterwards, a series of tweets containing warnings purportedly by ISIS, were published, along with links to Pentagon documents containing the contact information of military members.
Their YouTube page was also hacked, and ISIS propaganda videos were uploaded.
The US Central Command issued a statement on the incident:
Earlier today, U.S. Central Command’s Twitter and YouTube sites were compromised for approximately 30 minutes. These sites reside on commercial, non-Defense Department servers and both sites have been temporarily taken offline while we look into the incident further. CENTCOM’s operational military networks were not compromised and there was no operational impact to U.S. Central Command. CENTCOM will restore service to its Twitter and YouTube accounts as quickly as possible. We are viewing this purely as a case of cybervandalism.
In the meantime, our initial assessment is that no classified information was posted and that none of the information posted came from CENTCOM’s server or social media sites. Additionally, we are notifying appropriate DoD and law enforcement authorities about the potential release of personally identifiable information and will take appropriate steps to ensure any individuals potentially affected are notified as quickly as possible.