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Penfold

Claimed by Storm · listed 6 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedAug 18, 2026
  2. Data leakeddate unknown

At a glance

Group
Storm
Status
Data leaked
Country
United Kingdom
Sector
Technology
Listed on leak site
Aug 18, 2026

About the victim

AI dossier — public-source company profile

Penfold is a London-based fintech company founded in 2018 that provides digital workplace pension and auto-enrolment solutions for UK businesses, employees, and self-employed professionals. The company serves over 100,000 individuals and thousands of businesses, offering real-time pension tracking, flexible contributions, and FCA-regulated investment management in partnership with BlackRock and HSBC.

Industry
Financial Technology & Pension Services
Address
The Ministry, 79–81 Borough Road, London, SE1 1DN, United Kingdom
Employees
51-200
Founded
2018

Attack summary

Severity: high — Confirmed data exfiltration from an FCA-regulated financial services company handling regulated pension and personal financial data of over 100,000 individuals and thousands of businesses. Exposure of pension account data and PII at scale constitutes high severity.

The Storm group claims to have accessed Penfold's systems and exfiltrated data. No specific data categories or operational impact are detailed in the leak post excerpt provided.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Pension account details
  • Employee personal information
  • Business client records
  • Investment portfolio data

What the group claims

Penfold is a London-based financial technology company founded in 2018 that provides digital workplace and personal pension solutions for businesses, employees, self-employed professionals, freelancers, and limited company directors. The platform simplifies auto-enrolment compliance for employers while offering individuals real-time pension tracking, transparent investment breakdowns, and flexible contribution management via a mobile app and website. Penfold supports pension consolidation, automatic tax relief, and multiple investment plans including a Sharia-compliant option. Investments are managed by BlackRock and HSBC, and the company is authorised and regulated by the Financial Conduct Authority. Over 100,000 people and thousands of businesses across the United Kingdom trust Penfold with their pension savings. The company headquarters is located in The Ministry, 79–81 Borough Road, London, SE1 1DN, United Kingdom. 51-200 Employees

Sources

Source

Indexed 6 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Storm

Storm is a ransomware group first observed in August 2026, operating with an apparent financial motivation based on its targeting profile, though limited public documentation exists given its recent emergence and relatively small victim footprint. The group has claimed or been attributed to attacks against at least six known victims, with the United States representing its primary target geography. Storm has demonstrated a preference for targeting the healthcare and manufacturing sectors, alongside a broader category of other industries, suggesting an opportunistic rather than highly specialized targeting philosophy. Due to the group's recent emergence and limited victim count, comprehensive technical details regarding its initial access vectors, encryption methodology, tooling, or affiliation with known threat actor ecosystems have not yet been formally documented by CISA, the FBI, Mandiant, or other major threat intelligence publishers as of the time of this writing. No confirmed RaaS infrastructure, dark web leak site activity, or law enforcement actions against the group have been publicly attributed or reported in open sources. Given its nascent operational timeline beginning in 2026, Storm should be monitored as an emerging threat, particularly within the healthcare sector where ransomware attacks carry significant operational and patient safety implications, but analysts should treat any further characterization beyond the known victim and targeting data with caution pending additional corroborating intelligence. The group has been linked to 25 public disclosures across our corpus. First observed on a leak site on August 7, 2026; most recent post August 18, 2026. The operation is currently active.

Timeline of this disclosure

  • August 18, 2026Penfold listed by Stormon the group's public leak site

Other recent disclosures by Storm

Storm has been linked to 25 public victims on Darkfield. A sample of the most recent:

See the full Storm dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,572 disclosures indexed across all operators we track. Geographically, Penfold is reported in United Kingdom, a country with 377 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Storm means Penfold appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, NCSC (United Kingdom), as required for your jurisdiction.
  • Monitor for the data appearing on Storm's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.