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Recent Breaches › Commission de la construction du Québec (CCQ) Ransomware Claim

HIGH severityUnverified claimHow we verify

Commission de la construction du Québec (CCQ) Ransomware Claim: Ransomware Claim — What’s Alleged & What To Do

RBRecent Breaches Breach Intelligence·September 4, 2026
Commission de la construction du Québec (CCQ) Ransomware Claim

Occurred August 2026 · publicly disclosed September 4, 2026. Approximately 350k people affected.

HIGH
Severity
350k
People affected
3
Data types exposed
September 4, 2026
Disclosed
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A ransomware group listed the Commission de la construction du Québec (CCQ) in a claim posted on 4 September 2026, asserting that it had stolen personal information, employee data, and client records affecting 350 000 individuals during an intrusion that occurred in August 2026. Individuals who may have interacted with the CCQ are advised to review any notices from the organisation and to monitor their accounts for unusual activity.

Severity & verification
HIGH severityUnverified claim
Data types not itemised.
Published on a ransomware group’s leak site — an unverified extortion claim until the named organization or credible reporting corroborates it.
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AICompiled with AI assistance from public sources and published under our editorial standards.

Editorial & sourcing policy
Recent Breaches is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data, and we do not hold the data claimed in leak-site listings. Incidents are compiled from publicly accessible sources and threat-intelligence platforms and are reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — write to support@galaxywarden.com or press@recentbreaches.com.
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How this breach connects

Company

Attributed to

Method

CompanyCommission de la construction du Québec security record
84/100
DoxxScan™ · Low doxx risk
B- 76Above-average record

1 reported incident on record.

See Commission de la construction du Québec’s full breach history →

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Read GalaxyWarden’s full analysis of the Commission de la construction du Québec (CCQ) Ransomware Claim →

Source: threat-actor leak-site listing

Publicly posted by qilin — unverified claim, pending independent verification

Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.

Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.

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