2015 Office of Personnel Management data breach

Common card · No. 389698

The Office of Personnel Management data breach was a 2015 data breach targeting Standard Form 86 (SF-86) U.S. government security clearance records retained by the United States Office of Personnel Management (OPM). One of the largest breaches of government data in U.S. history, the attack was carried out by an advanced persistent threat based in China, widely believed to be the Jiangsu State Security Department, a subsidiary of the Government of China's Ministry of State Security spy agency. The two different hackers who gained access to the system went by the names "Tony Stark," and "Steve Rogers," (in reference to the Marvel superheroes), using these names on the email address handles they used to gain access. In June 2015, OPM announced that it had been the target of a data breach targeting personnel records. Approximately 22.1 million records were affected, including records related to government employees, other people who had undergone background checks, and their friends and family...

Read on Wikipedia