Last mentioned: Mar 14, 2026
Vulnerability Reported
Dan Neidle of Tax Policy Associates alerts Companies House to the 'back key' security flaw.
Service Suspension
Companies House takes the WebFiling service offline on Friday evening to investigate the issue.
Guidance Issued
Official guidance released advising users on how to handle missed filing deadlines due to the outage.
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.
This page surfaces every story mentioning Companies House across our legal coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running legal beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where Companies House was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |