U.S. Department of Energy

Under Review: 
No Review
Date Breach Made Public: 
August 16, 2013
Washington , DC
United States
District Of Columbia US
Records Breached: 

104,000 (5,711 confirmed)

Breach Total Number: 
104 000
Year of Breach: 
Type of organization: 
Type of breach: 

An unspecified security incident caused the personal information of current and former employees to be exposed.  No classified data was lost.

UPDATE (08/30/2013): An August 29 memo revealed that the system that was hacked was called DOEInfo.  A total of 2,539 current employees and 3,172 former employees were affected.  Names, Social Security numbers, and dates of birth were exposed.

UPDATE (09/03/2013): Approximately 53,000 current and former federal employees, employee dependents and contractors had their information exposed.  The incident occurred in July of 2013.

UPDATE (10/22/2013): The Department of Energy revised the number of affected current and former employees to 104,000.

UPDATE (12/13/2013): Up to 150,000 employees may have been affected.

UPDATE (12/17/2013): A federal audit revealed that the Department of Energy had received warnings about the security of its information systems, yet failed to act.