Was Go-Ahead Group hit by ransomware?

Go-Ahead Group was listed by the Dunghill_Leak ransomware operation (United Kingdom), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Dunghill_Leak ransomware group?

Dunghill_Leak is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Go-Ahead Group breach?

Dunghill_Leak published data attributed to Go-Ahead Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Go-Ahead Group

Claimed by Dunghill_Leak · listed 3 years ago

34m

Age

since listed · data leaked

Status timeline

ListedSep 26, 2023
Data leakeddate unknown

At a glance

Group: Dunghill_Leak
Status: Data leaked
Country: United Kingdom
Sector: Transportation & Logistics
Listed on leak site: Sep 26, 2023

About the victim

AI dossier — public-source company profile

Go-Ahead Group plc is a leading international public transport company headquartered in Newcastle upon Tyne (now with London headquarters), operating bus and rail services across the United Kingdom, Ireland, the Nordics, Singapore, and Australia. The group operates approximately 7,000 buses and facilitates around 1 billion annual journeys, employing approximately 27,000 colleagues. It also has historical involvement in ground handling services at British airports.

Industry: Public Passenger Transport (Bus & Rail)
Address: Go-Ahead Group plc, 4 Matthew Parker Street, London, SW1H 9NP, United Kingdom
Employees: 27000
Founded: 1987

Attack summary

Severity: high — Data has been confirmed as published by the threat actor for a large public transport operator with ~27,000 employees and multinational operations; exfiltration of significant business and likely employee PII data at scale from critical transport infrastructure represents a high-severity incident.

Dunghill Leak claims to have exfiltrated data from Go-Ahead Group, with the disclosure status listed as 'data_published', indicating data has been released publicly. No specific ransom amount or data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business data
Employee information
Operational records
Transport contract documents
Financial records

What the group claims

Go-Ahead Group plc is a passenger transport company based in Newcastle upon Tyne, England. The majority of its operations are within the United Kingdom, Ireland, Singapore, Norway, and Germany. Go-Ahead diversified into ground handling services at various British airports via the acquisition of Gatwick Handling International, British Midland, and Reed Aviation. Acquired numerous other British transport companies, including Thames Travel, Carousel Buses, Hedingham, Anglian Bus, and HC Chambers & Son. It was contracted to operate bus and rail services in Germany and Singapore. During January 2023, it was announced that Go-Ahead was expanding into the Australian market via the U-Go Mobility joint venture with the engineering company UFL.

Sources

Victim sitego-ahead.com

Source

Indexed 3 years 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 Dunghill_Leak

Dunghill_Leak is a relatively obscure ransomware operation that emerged in April 2023, primarily motivated by financial gain through extortion activities targeting small to medium-sized organizations. The group's country of origin and potential affiliations with other cybercriminal organizations remain unknown due to limited public reporting from major threat intelligence firms and law enforcement agencies. Based on their targeting patterns, the group appears to focus on opportunistic attacks against businesses in English-speaking countries, particularly the United Kingdom, Canada, and United States, as well as expanding operations into South American markets including Brazil and Bolivia, with a preference for victims in business services and technology sectors. With only 16 documented victims since their emergence, Dunghill_Leak operates as a smaller-scale ransomware group compared to major threat actors, and specific details about their attack methodologies, initial access vectors, encryption techniques, or whether they employ double extortion tactics have not been extensively documented in publicly available threat intelligence reports. The group's current operational status remains unclear, as limited public information prevents a comprehensive assessment of their ongoing activities or potential law enforcement disruption efforts. The group has been linked to 16 public disclosures across our corpus. First observed on a leak site on April 10, 2023; most recent post July 1, 2025. The operation is currently inactive.

Timeline of this disclosure

September 26, 2023Go-Ahead Group listed by Dunghill_Leakon the group's public leak site

Other recent disclosures by Dunghill_Leak

Dunghill_Leak has been linked to 16 public victims on Darkfield. A sample of the most recent:

See the full Dunghill_Leak dossier →

Sector and geography

This disclosure adds to ransomware activity in the Transportation & Logistics sector, which has 180 disclosures indexed across all operators we track. Geographically, Go-Ahead Group is reported in United Kingdom, a country with 1,217 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Dunghill_Leak means Go-Ahead Group 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 Dunghill_Leak'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.