At the beginning of October, a defective hard drive containing the personal information of 70 million U.S. military personnel was returned to a contractor for repair and recycling … without being erased first.

“This is the single largest release of personally identifiable information by the government ever,” National Archives and Records Administration (NARA) IT manager Hank Bellomy told Wired.com

But the exposure of 70 million records is only the second (maybe even third) largest loss of personal data by an organization or company in the past five years. Here’s a look back at the eleven largest data breaches in recent history.

Joel Page/Associated Press Image Source