Unidentified attackers were able to gain access to the National Register of Dams – a database maintained by the U.S. Army Corps of Engineers (United States Army Corps of Engineers). This is a valuable database of 79,000 dams in America, with their weaknesses, evaluating the number of dead in the case of a breakage and other important information.
Corps of Engineers periodically puts public access version of the National Inventory of Dams (NID) in a shortened form, without the secret information. The official website of NID couple of days ago, there was a message about the change of user names and passwords “to match the recent changes in the security policy.”
Unauthorized access to servers with sensitive information was in January and it was found only in April. Thus, the spies had access to the information within three months.
As usual in the case of computer espionage, the authorities suspected Chinese hackers.