Was peterboroughpublichealth.ca hit by ransomware?

peterboroughpublichealth.ca was listed by the Lynx 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 Lynx ransomware group?

Lynx 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 peterboroughpublichealth.ca breach?

Lynx published data attributed to peterboroughpublichealth.ca. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Lakelands Public Health

listed as peterboroughpublichealth.ca · Claimed by Lynx · listed 5 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 3, 2026
Data leakeddate unknown

At a glance

Group: Lynx
Status: Data leaked
Country: Canada
Sector: Public Sector
Listed on leak site: Feb 3, 2026

About the victim

AI dossier — public-source company profile

Lakelands Public Health (formerly HKPR District Health Unit and Peterborough Public Health) is a Canadian regional public health authority serving residents across the City of Kawartha Lakes, County of Haliburton, Northumberland County, and the City and County of Peterborough, Ontario. The organization delivers mandated public health programs including immunization, dental health, sexual health, harm reduction, environmental health inspections, and communicable disease control. It is governed by a Board of Health and operates under Ontario's public health framework.

Industry: Public Health Services
Address: City of Kawartha Lakes, County of Haliburton, Northumberland County, and City and County of Peterborough, Ontario, Canada

Attack summary

Severity: critical — The victim is a government public health authority handling highly sensitive regulated data including medical, immunization, sexual health, mental health, and harm reduction records for a large regional population. Data has been confirmed published by the threat actor, indicating exfiltration of PII and potentially sensitive health data at scale, meeting the threshold for critical severity.

The Lynx ransomware group claims to have attacked Lakelands Public Health, with the disclosure status indicating data has been published. The post does not specify the volume of data exfiltrated, but the published status suggests exfiltration and public release of organizational data.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Public health program records
Resident/patient personal information
Immunization records
Dental health records
Sexual health clinic records
Mental health support records
Harm reduction program data
Internal organizational documents
Community partner and professional records

What the group claims

Lakelands Public Health, formerly known as the HKPR District Health Unit and Peterborough Public Health, is pleased to provide important public health programs and services to residents in the City of Kawartha Lakes, the County of Haliburton, Northumberland County, and the City and County of Peterborough.

Sources

Source

Indexed 5 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 Lynx

Lynx is a relatively new ransomware group that emerged in July 2024, operating with apparent financial motivations and demonstrating rapid scaling capabilities with 397 documented victims within their first few months of operation. The group's origin and specific affiliations remain unclear due to their recent emergence, though their targeting patterns suggest a sophisticated operation that may operate independently rather than as a traditional Ransomware-as-a-Service model. Based on their victim distribution, Lynx appears to employ broad-spectrum targeting methodologies focusing heavily on English-speaking countries, with the United States, United Kingdom, Canada, Germany, and Australia representing their primary geographic targets, while concentrating their attacks on manufacturing, business services, technology, and transportation/logistics sectors, though specific technical details regarding their initial access vectors, encryption methods, and data exfiltration practices have not yet been extensively documented by major security research organizations. Due to the group's recent emergence, there are no widely reported major campaigns or high-profile incidents that have gained significant public attention from law enforcement agencies or established threat intelligence firms. As of late 2024, Lynx appears to remain active with no reported law enforcement disruptions or operational changes. The group has been linked to 414 public disclosures across our corpus. First observed on a leak site on July 29, 2024; most recent post June 18, 2026. The operation is currently active.

Timeline of this disclosure

February 3, 2026peterboroughpublichealth.ca listed by Lynxon the group's public leak site

Other recent disclosures by Lynx

Lynx has been linked to 414 public victims on Darkfield. A sample of the most recent:

See the full Lynx dossier →

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 466 disclosures indexed across all operators we track. Geographically, peterboroughpublichealth.ca is reported in Canada, a country with 1,055 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Lynx means peterboroughpublichealth.ca 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 Lynx'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.