# WebFiling

Type: Product

Source: GetYourBrief — https://getyourbrief.com/entity/webfiling
Canonical HTML page: https://getyourbrief.com/entity/webfiling

## Timeline

- **2026-03-14**: Guidance Issued — The registrar advises companies to document filing errors and promises to take the outage into account for deadlines.
- **2026-03-13**: Vulnerability Reported — Dan Neidle of Tax Policy Associates alerts Companies House to the 'back key' security flaw.
- **2026-03-13**: Service Suspension — Companies House takes the WebFiling service offline on Friday evening to investigate the issue.
- **2026-03-13**: Guidance Issued — Official guidance released advising users on how to handle missed filing deadlines due to the outage.
- **2026-03-13**: Vulnerability Identified — Dan Neidle of Tax Policy Associates discovers that the 'back' button allows access to other companies' private data.
- **2026-03-13**: Agency Alerted — Companies House is formally notified of the security flaw by Tax Policy Associates.
- **2026-03-13**: Service Suspension — Companies House takes the WebFiling portal offline on Friday evening to investigate the breach.

## Recent coverage (2 stories, network-wide)

### Companies House Suspends WebFiling After Critical Data Breach Vulnerability
2026-03-14 00:25:04 · Sector: finance · Sentiment: Negative · Impact: 7/10 · Sources: 2

The UK’s corporate registrar, Companies House, has taken its WebFiling service offline following the discovery of a critical security flaw that exposed sensitive director data. The vulnerability allowed unauthorized users to view and potentially edit corporate records, raising significant concerns regarding identity theft and corporate fraud.
Full story: https://getfinancebrief.com/story/companies-house-suspends-webfiling-data-breach

### Companies House Suspends WebFiling After Critical Data Vulnerability Exposed
2026-03-14 00:22:09 · Sector: legal · Sentiment: Negative · Impact: 7/10 · Sources: 2

The UK’s Companies House has taken its WebFiling service offline following the discovery of a critical security flaw that allowed users to view and edit sensitive personal data of company directors. The vulnerability, which could be exploited simply by using a browser's back button, has raised significant concerns regarding corporate identity theft and the integrity of the UK's business register.
Full story: https://getlegalbrief.com/story/companies-house-webfiling-data-vulnerability-suspension

---
This page is a machine-readable summary. Sentiment measures the directional read of each development for this entity, not the tone of the reporting; impact weights consequence, not syndication reach. See https://getyourbrief.com/guides/methodology for the full editorial methodology.