Post Office security incident history
Hacking, data breaches and other security incidents involving Post Office, with related coverage.
Incidents: 2 · Most recent
Post Office leaks data of Horizon scandal victims
Impact: Personal information of Horizon IT scandal victims
The Post Office leaked the personal information of victims of the Horizon IT scandal. The Information Commissioner's Office (ICO) judged the breach to have been entirely preventable and issued the Post Office with a reprimand.
Read on ICO ↗Post Office leaks names of sub-postmasters
Impact: Branch operators' names leaked; hundreds eligible for compensation
The Post Office mistakenly leaked the names of its branch operators. Compensation was subsequently planned for hundreds of affected people.
Related reports: 3 · last report →