UK Gov
Official email from Companies House to all registered email addresses of companies registered in the UK, about a security issue that affected the WebFiling service.
Companies House is contacting every company's registered email address between Tuesday 17 March and Thursday 19 March, about a security issue identified with the WebFiling service on Friday 13 March 2026.
This is a copy of the email which explains what happened, how to check your details and what steps to take if you have any concerns.
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