Given Obama’s hatred for the military, I think the first investigation should start with his office.
Iranian hackers entered ‘bloodstream’ of Navy network
An Iranian attack on the Navy’s largest unclassified computer network that was first reported on in September managed to get into the “bloodstream” of the system — a much more serious breach of security than previous thought — officials now admit, the Wall Street Journal said.
“It was a real big deal,” a senior U.S. official told the Journal of the attack, which affected the Navy and Marine Corps. “It was a significant penetration that showed a weakness in the system.”