U.S. Department of Veterans Affairs, VA Medical Center - 2007

An employee reported a portable hard drive stolen or missing that might contain personal information about veterans including Social Security numbers. UPDATE (2/10/07): VA increases number of affected veterans to 535,000, included in the total below. UPDATE (2/12/07): VA reported that billing information for 1.3 million doctors was also exposed, including names and Medicare billing codes, not included in the total below. UPDATE (3/19/07): The VA's Security Operations Center has referred 250 incidents since July 2006 to its inspector general, which has led to 46 separate investigations. UPDATE (6/18/07):More than $20 million to respond to its latest data breach, the breach potentially puts the identities of nearly a million physicians and VA patients.