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The Gisborne Group

Claimed by Worldleaks · listed 11 months ago

11m
Age
since listed · data leaked

Status timeline

  1. ListedAug 7, 2025
  2. Data leakeddate unknown

At a glance

Group
Worldleaks
Status
Data leaked
Country
Canada
Listed on leak site
Aug 7, 2025

About the victim

AI dossier — public-source company profile

The Gisborne Group is a Canadian industrial construction and fire protection company operating for over 70 years with offices in British Columbia and Alberta. They specialize in design-build projects, commercial retail and office buildings, multi-unit residential construction, and fire protection systems, serving clients across Canada.

Industry
Industrial Construction & Fire Protection
Address
British Columbia and Alberta, Canada (headquarters BC, operations throughout Canada)
Founded
1954

Attack summary

Severity: low — Disclosure is announcement-only with no proof files, screenshots, or operational impact described. No specific data categories or exfiltration claims are detailed in the available leak post.

The ransomware group 'worldleaks' claims to have compromised The Gisborne Group. No specific details are provided regarding the nature of the attack (encryption vs. exfiltration) or the scope of data allegedly accessed.

low

Original description

AI-summarised, not from the leak post

"The Gisborne Group" is a privately-held construction company founded in Canada. They provide services in industrial and commercial construction, design-build projects, commercial retail and office buildings, and multi-unit residential buildings. With an impressive portfolio of forward-thinking construction practices, they're known for their commitment to quality, safety, and project efficiency.

Sources

Source

Indexed 11 months 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 worldleaks

Based on the limited available data, worldleaks is a recently emerged ransomware group that was first observed in May 2025 and appears to be primarily financially motivated, having claimed 134 victims in a relatively short timeframe since its emergence. The group's origin and organizational structure remain unclear, with no publicly documented information from major cybersecurity firms or law enforcement agencies regarding their country of origin, potential affiliations, or operational model. Their targeting patterns indicate a focus on English-speaking countries, particularly the United States, United Kingdom, and Canada, with additional activity observed in Germany and Japan, while their sector targeting shows a preference for healthcare, technology, manufacturing, and consumer services organizations. Due to the group's recent emergence and limited public documentation by established threat intelligence sources, specific details about their attack methodologies, encryption techniques, extortion tactics, and notable campaigns have not yet been comprehensively analyzed or reported by organizations such as CISA, FBI, or major cybersecurity research firms. The group appears to remain active as of the most recent observations, though comprehensive threat intelligence profiling awaits further analysis and documentation by established cybersecurity authorities. The group has been linked to 173 public disclosures across our corpus. First observed on a leak site on May 18, 2025; most recent post July 2, 2026. The operation is currently active.

Timeline of this disclosure

  • August 7, 2025The Gisborne Group listed by worldleakson the group's public leak site

Other recent disclosures by worldleaks

worldleaks has been linked to 173 public victims on Darkfield. A sample of the most recent:

See the full worldleaks dossier →

Sector and geography

Geographically, The Gisborne Group is reported in Canada, a country with 1,055 ransomware disclosures in our corpus.

If your organisation is affected

A listing by worldleaks means The Gisborne 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, CCCS (Canada), as required for your jurisdiction.
  • Monitor for the data appearing on worldleaks'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.