high severity May 18, 2026 · 4 min read Unverified claim — what this is

Stonehenge Therapeutic Community Listed by Cmdorganization Ransomware Group

If you are a customer of Stonehenge Therapeutic Community, here’s what is being claimed, and what it would mean for you.

Stonehenge Therapeutic Community is dedicated to providing expert services to individuals, families, and communities affected by substance use. Their offerings include addiction medicine and withdrawal support, supportive housing, integrated support and justice, and residential services. The organization emphasizes partnership, support, and advocacy, aiming to help clients learn to live effectively and contribute to society. With a history dating back to 1971, Stonehenge has evolved to offer a full spectrum of residential and community-based programs.
— from Cmdorganization’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

Stonehenge Therapeutic Community Listed by Cmdorganization Ransomware Group

On May 18, 2026, the Stonehenge Therapeutic Community appeared on the leak site of the cmdorganization ransomware group after its internal files were allegedly exfiltrated during a ransomware attack. The Canadian nonprofit, which has helped individuals and families recover from substance use disorders since 1971, provides addiction medicine, supportive housing, justice-integrated programs, and residential treatment. Public reporting indicates that the number of people whose personal information may have been exposed remains unknown.

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What Public Reporting Shows

Available reporting describes the incident as a ransomware attack in which attackers gained access to Stonehenge’s internal systems and removed files before encrypting them. The organization’s data was subsequently published on the cmdorganization leak site. No confirmed total of affected records has been released, and the precise types of documents taken have not been publicly detailed beyond the broad description of internal files.

Stonehenge Therapeutic Community serves clients across Ontario with programs that routinely collect sensitive personal information, including health records, family contact details, housing information, and justice-system referrals. Any exfiltration of such material creates immediate privacy risks for current and former clients.

Why This Matters for You and Your Family

When a treatment provider that holds your health history, address, phone number, or family details is breached, that information can quickly move from a criminal leak site into broader circulation. Health and substance-use records are especially damaging if exposed, because they can be used for identity theft, insurance fraud, blackmail, or harassment. Even if you or a family member completed treatment years ago, the data may still be active in the compromised systems.

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Report details & sourcing

Attributed to Cmdorganization · 43 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed May 18, 2026

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Threat-actor tracker

Cmdorganization — 43 incidents tracked

Every breach we've attributed to Cmdorganization, in one running log. See who else they've hit →

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