This time, the spies were trying to get access to European defense firms, McAfee says.

It's a cautionary tale in the use of social engineering for espionage.

The project is going to cost five times more than what military officials originally estimated.

Data likely stolen in the hack included specifications of missile prototypes, according to Japanese media.

Sinkholes don't leak. So why does a small DOD agency say a Chinese hacking group is using one to steal data?

Hackers are targeting defense industrial base companies and their networks in order to move into DOD systems.