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Recent Breaches › Sisint Listed by qilin Ransomware Group

HIGH severity

Sisint Listed by qilin Ransomware Group: What Was Exposed & What To Do

Reported July 3, 2026. Approximately unknown people affected.

Sisint was listed by the Qilin ransomware group on July 3, 2026, after internal files were exfiltrated in an attack. Check whether your data appears in any breach disclosures and change passwords or enable additional protections if needed.

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What was exposed

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What to do if you were in the Sisint Listed by qilin Ransomware Group

How this breach connects

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Frequently asked questions

Was my data in the Sisint Listed by qilin Ransomware Group breach?

The fastest way to know is a free exposure scan — it checks your email address against known breach data, including recent incidents like this one.

What information was exposed in the Sisint Listed by qilin Ransomware Group?

The reported exposed data includes: Internal files exfiltrated in ransomware attack.

What should I do after the Sisint Listed by qilin Ransomware Group breach?

Change your password for that account and anywhere you reused it, turn on two-factor authentication, and remove your personal information from data-broker sites so it can’t be combined with the leaked data.

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Read GalaxyWarden’s full analysis of the Sisint Listed by qilin Ransomware Group →

Source: qilin leak site (via ransomware.live)

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.