By Thom Shanker And Elisabeth Bumiller The New York Times

The Defence Department suffered one of its worst digital attacks in history in March, when a foreign intelligence service hacked into the computer system of a corporate contractor and obtained 24,000 Pentagon files during a single intrusion, senior officials said Thursday. The disclosure came as the Pentagon released a strategy for military operati...

The Defence Department suffered one of its worst digital attacks in history in March, when a foreign intelligence service hacked into the computer system of a corporate contractor and obtained 24,000 Pentagon files during a single intrusion, senior officials said Thursday. The disclosure came as the Pentagon released a strategy for military operati...