Question to the Department for Business and Trade:

To ask the Secretary of State for Business and Trade, with reference to the Companies House news story titled Update on Companies House WebFiling security issue, published on 16 March 2026, on what date the security flaw allowing unauthorised access to company details was first introduced to the WebFiling system.

Companies House has investigated the technical issue and confirmed that it was introduced on 11 October 2025 as part of a major WebFiling service update. It was not the result of any malicious attempt to breach its systems from outside or a cyber-attack. The issue has now been fixed and the WebFiling Service reopened at 9am on 16 March after comprehensive testing.