A Chinese intelligence agency was able to successfully hack into a Navy contractor around February, stealing more than a half terabyte worth of highly sensitive documents.
Professional hackers from the NSA, U.S. Cyber Command and foreign militaries are launching a barrage of cyberattacks this week — against teams of students.
A hacker broke into Navy systems last week and accessed the personal data of more 130,000 current and former U.S. Navy sailors, the service announced Wednesday.