Was EllisDon Corporation hit by ransomware?

EllisDon Corporation was listed by the Metaencryptor ransomware operation (Canada), 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 Metaencryptor ransomware group?

Metaencryptor 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 EllisDon Corporation breach?

Metaencryptor published data attributed to EllisDon Corporation. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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EllisDon Corporation

Claimed by Metaencryptor · listed 6 days ago

Age

since listed · data leaked

Status timeline

ListedSep 7, 2026
Data leakeddate unknown

At a glance

Group: Metaencryptor
Status: Data leaked
Country: Canada
Sector: Professional Services
Listed on leak site: Sep 7, 2026

About the victim

AI dossier — public-source company profile

EllisDon Corporation is a 100% employee-owned Canadian construction and infrastructure services company founded in 1951. With over 10,000 employees, it provides construction management, engineering, project development, and facilities management across healthcare, transportation, commercial, industrial, government, and defense sectors, operating domestically and internationally.

Industry: Construction & Infrastructure Services
Employees: 10000+
Founded: 1951

Attack summary

Severity: medium — Victim listing with no disclosed proof files, no confirmed data exfiltration details, and no stated operational impact. Company handles government and defense infrastructure contracts, elevating potential sensitivity if breach is confirmed, but evidence remains absent.

The metaencryptor group claims to have compromised EllisDon Corporation. The leak post does not specify the attack vector (encryption vs. exfiltration), data categories at risk, or any proof of data breach.

medium

What the group claims

EllisDon Corporation is a leading Canadian construction and infrastructure services company. Founded in 1951, the company provides construction management, engineering, project development, and facilities management services across a wide range of sectors, including healthcare, transportation, commercial, industrial, government, and defense infrastructure. EllisDon operates across Canada and internationally.

Sources

Source

Indexed 6 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 Metaencryptor

Metaencryptor is a relatively new ransomware group that emerged in August 2023, operating with primarily financial motivations and targeting organizations across multiple sectors and geographical regions. The group appears to be an independent operation rather than a Ransomware-as-a-Service model, though limited public documentation makes definitive attribution challenging regarding their specific country of origin or connections to established cybercriminal networks. Based on their targeting patterns, Metaencryptor demonstrates a preference for manufacturing organizations, business services, and transportation/logistics companies, with their operations concentrated primarily in Western nations including Germany, the United States, Canada, Spain, and the United Kingdom. With 31 documented victims since their emergence, the group represents a moderate but persistent threat in the ransomware landscape. However, due to their recent emergence and relatively lower profile compared to major ransomware families, comprehensive technical analysis of their attack methodologies, encryption techniques, and specific initial access vectors has not been extensively documented by major cybersecurity firms or government agencies. The group's current operational status remains active as of available intelligence, though the limited public reporting suggests they operate with a smaller scale and lower visibility than prominent ransomware-as-a-service operations that typically attract more attention from law enforcement and security researchers. The group has been linked to 42 public disclosures across our corpus. First observed on a leak site on August 16, 2023; most recent post September 7, 2026. The operation is currently inactive.

Timeline of this disclosure

September 7, 2026EllisDon Corporation listed by Metaencryptor on the group's public leak site

Other recent disclosures by Metaencryptor

Metaencryptor has been linked to 42 public victims on Darkfield. A sample of the most recent:

See the full Metaencryptor dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 17 disclosures indexed across all operators we track. Geographically, EllisDon Corporation is reported in Canada, a country with 320 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Metaencryptor means EllisDon Corporation 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 Metaencryptor'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.