Sweden’s government has exposed sensitive and personal data of millions, along with the nation’s military secrets, in what is now considered to be one of the worst government IT disasters ever. The leak, which occurred in 2015, saw the names, photos and home addresses of millions exposed. Those affected include fighter pilots of Swedish air force, police suspects, people under the witness relocation programme, members of the military’s most secretive units (equivalent to the SAS or SEAL teams) and more.

The leak occurred after the Swedish Transportation Agency (STA) decided to outsource its database management and other IT services to firms such as IBM and NCR. However, the STA uploaded its entire database onto cloud servers, which included details on every single vehicle in the country. The database was then emailed to marketers in clear text message. When the error was discovered, the STA merely sent another email asking the marketing subscribers to delete the previous list themselves.