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Ransomware victim disclosure

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Spratleys of Mortimer

Claimed by PrinzEugen · listed 2 days ago

hundreds of GBs
Data size
2d
Age
since listed · listed for ransom

Status timeline

  1. ListedJun 15, 2026

Current state: Listed for ransom

At a glance

Status
Listed for ransom
Listed on leak site
Jun 15, 2026
Data size
hundreds of GBs

About the victim

AI dossier — public-source company profile

Spratley's of Mortimer is a fifth-generation family-run garage near Reading, Berkshire, specializing in car servicing, MOT testing, repairs, and used car sales. They service most makes including Vauxhall, Ford, Volkswagen, Audi, and Renault, employing professionally trained technicians.

Industry
Automotive Service & Repair
Address
Mortimer, near Reading, Berkshire, GB (junction 11 of M4 on Berkshire/Hampshire border)
Founded
1960

Attack summary

Severity: medium — Confirmed encryption and exfiltration of hundreds of GBs of business data from a small/medium business with no clear evidence of regulated PII at scale. The threat of ongoing network access adds operational concern but lacks proof of critical data types specific to automotive service operations.

PrinzEugen claims to have encrypted hundreds of gigabytes across company file shares and exfiltrated data. The group states their beacon remains active within the network and threatens full public release of files if ransom is not paid.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • company file shares
  • internal business records

What the group claims

Hundreds of GBs of data encrypted across company file shares. The threat actor's beacon is still calling back from within the network.

The leak post

captured from the group's site
[ spratleys.co.uk Hundreds of GBs of data encrypted across company file shares, If you would like the decryption key you just need to ask. 6/10/2026 - PS. Our beacon is STILL calling back from within your network. ](http://prinzfkbjiazbrur4mjje6mntjc4vydx3iatkkzycufoylqcoo4y7pqd.onion/spratley-s-of-mortimer) ## [ Transitions Pro Centre Val de Loire  The swift attack has resulted in both the exfiltration and encryption of hundreds of gigabytes. In the event of complete non-compliance; Files will be fully released for public download. ](http://prinzfkbjiazbrur4mjje6mntjc4vydx3iatkkzycufoylqcoo4y7pqd.onion/transitions-pro-centre-val-de-loire) [ Beginning on February 27th 2026, The 3 week long attack on both Standard Bank and Liberty has resulted in 1.2TB of data being exfiltrated from internal servers. A peaceful resolution was sought out with Standard Bank, however after 2 weeks of back and forth they made the decision to abandon their customers. The haul of over 154,000,000 rows of exported SQL data includes but is not limited to: Customer PII (Full Names, Addresses, Emails, Phone Numbers, South African ID Numbers, Drivers License Numbers, Passport Numbers, Credit Card Numbers, Acco…

Screenshot of the leak post

Leak screenshot for Spratleys of Mortimer

Sources

Source

Indexed 2 days 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 PrinzEugen

PrinzEugen is a relatively obscure ransomware group that first emerged in May 2026, appearing to be financially motivated based on their operational profile. The group's country of origin and potential affiliations with other ransomware operations remain unknown due to limited public reporting and intelligence documentation. With only one documented victim to date, detailed information about PrinzEugen's attack methodology, initial access vectors, and encryption techniques has not been extensively analyzed or publicly documented by major cybersecurity firms or law enforcement agencies. The group has demonstrated a focus on the financial services sector, with their sole known victim located in South Africa, though it is unclear whether this geographic and sectoral targeting represents a deliberate strategy or is simply reflective of their limited observed activity. Given the recent emergence of this group in 2026 and the lack of comprehensive reporting from established threat intelligence sources such as CISA, FBI, or Mandiant, PrinzEugen's current operational status and capabilities remain largely uncharacterized in the public threat landscape. The group has been linked to 8 public disclosures across our corpus. First observed on a leak site on May 4, 2026; most recent post June 15, 2026. The operation is currently active.

Also tracked as: prinz eugen.

Timeline of this disclosure

  • June 15, 2026Spratleys of Mortimer listed by PrinzEugenon the group's public leak site
Data size
hundreds of GBs

Sector and geography

This disclosure adds to ransomware activity in the Automotive Service & Repair sector. Geographically, Spratleys of Mortimer is reported in United Kingdom, a country with 372 ransomware disclosures in our corpus.

If your organisation is affected

A listing by PrinzEugen means Spratleys of Mortimer appeared on a ransomware extortion site and is being pressured to pay before any publication. 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 PrinzEugen'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.

Spratleys of Mortimer data breach — PrinzEugen ransomware attack (2026) · Darkfield