Chinese hackers broke into U.S. federal employee network - Jul. 10, 2014

Hackers have broken into a network housing sensitive information on federal employees, including a database of people with top-secret clearances.

The attack occurred in mid-March, U.S. government officials told CNNMoney on Thursday. A New York Times report attributed the operation to China -- although it was unclear whether hackers were independent or government spies.

Chinese hackers broke into U.S. federal employee network - Jul. 10, 2014