Case Studies

Report

HackerOne : Companies House – Vulnerability Report, ID 3594151

Summary: We have reported a vulnerability on a companies house system through HackerOne Report reference – 3594151. On the 11 March 2026 we received a response from the triage team who closed the report as informative. The team have validated our concerns and passed the report to the internal team

Read More »
Report

Independent Verification Report for Signalwatch’s Findings

Independent Verification Report :  Audit of Companies House Data Discrepancies and Legacy Name Mismatches Prepared for: SignalWatch UK (IAM Signal LTD Company number SC617794) Auditor: Matthew Laverty Role : Fraud Investigation specialist  Email: mathewlaverty554@gmail.com LinkedIn: https://www.linkedin.com/in/matthew-laverty-89a404167?utm_source=share&utm_campaign=share_via&utm_content=profile&utm_medium=ios_app Date:  4th March 2026  Confidentiality Note: This report is intended for public release in

Read More »
Report

Targeted FOI Request regarding Joanna Crellin CMG (in her current role as Director General at DBT, who held a directorship of The Hispanic and Luso Brazilian Council,

Dear Department for Business and Trade, FOI Request  Question : What information do you have on following issue (please note – a summary report has been added below for full context and understanding) Joanna Crellin CMG (in her current role as Director General at DBT, which has oversight responsibility for

Read More »
Report

Report submission to Serious Fraud Office, Signalwatch OSINT Analysis

Prepared by: Grok 4.20 Corporate Registry & Economic Crime Review Executive Summary SignalWatch has completed a targeted open-source intelligence (OSINT) review of over 130 UK-registered companies previously flagged for potential registry and transparency analysis. The review specifically identified entities with Serious Fraud Office (SFO) Deferred Prosecution Agreements (DPAs) or concluded

Read More »
Report

Report Submission to Thames Valley Police SignalWatch OSINT Analysis

Executive Summary On 25 February 2026, SignalWatch submitted a formal intelligence report to Thames Valley Police via the Single Online Home service (Form Reference: CDS-41342-26-4300-002).The report flags systemic, viable vulnerabilities arising from legacy name-history discrepancies on Companies House Outcomes Acknowledgement of receipt received from Thames Valley Police. The force confirmed

Read More »
Report

Report Submission to Metropolitan Police – SignalWatch OSINT Analysis 

Executive Summary On 25 February 2026, SignalWatch submitted a formal intelligence report to the Metropolitan Police via the Single Online Home service (Form Reference: CDS-41310-26-0100-002). The report outlines the systemic Companies House vulnerabilities and stakeholders  Outcomes Acknowledgement of receipt received from the Metropolitan Police. The force has confirmed the report

Read More »
Report

Leveraging Freedom of Information Requests to Map and Expose Regulatory Gaps: A Model for Corporate Registry Oversight

Grok 4.20 Transparency & OSINT Analysis Executive Summary Freedom of Information (FOI) legislation under the Freedom of Information Act 2000 provides a powerful, low-cost mechanism for independent researchers and civil-society actors to test regulatory awareness, policies, and oversight of systemic vulnerabilities. SignalWatch UK has deployed this tool with precision: a

Read More »
Report

Companies House Registry: Viable Vulnerabilities from legacy name mismatches

SignalWatch UK has identified systemic vulnerabilities arising from discrepancies between Layer 1 (searchable company overview and name history) and Layer 2 (detailed PDF filing histories) on the Companies House register. Our analysis has uncovered 91 unique viable vulnerabilities across 136 companies, directly impacting 18 distinct stakeholder groups (including banks, auditors,

Read More »
Uncategorized

Company control sheet

We now have confirmation from companies house that they have reviewed the SignalWatch report and will implement corrections for the following Company list : Remediated Companies   (* Update on 16/02/2026 – this is now the first confirmed record correction)  VISTRA LIMITED Company number 00865285 : https://perma.cc/5DPT- (*update 26/03/25 – this

Read More »