Thyssen Mining notified the Montana Attorney General on December 05, 2025 of a data breach that exposed the personal information of 32 individuals. The breach itself occurred on August 13, 2025; anyone who received a notification or believes their data may have been involved should review the notice and follow the recommended steps.
Corroborated by an official disclosure or a verified breach feed.
Check your exposure
32 accounts were exposed here. We can’t confirm any single incident against the sources we search — but we can show you every leak and listing tied to your email. 15-sec check, no card.
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.
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.
We want your time here to be the best it can be. Pick the theme that fits your reading style — each one shows you the type and colour you’ll actually read in.
Change it any time from the foot of any page.
Cookies on Recent BreachesWe use strictly necessary cookies to serve and secure this site. With your permission we also use analytics cookies (PostHog — to see which stories get read) and advertising cookies (Google AdSense). Nothing optional loads until you choose. Details in our Cookie Policy and Privacy Policy.