Operation Endgame Data Breach History
WebsiteOperation Endgame is an international law-enforcement disruption effort targeting malware and ransomware-enabling criminal infrastructure.
This page shows all data breaches of Operation Endgame. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All Operation Endgame Breaches
Operation Endgame Data Breach Summary
This page tracks the Operation Endgame data breach history and cybersecurity incidents affecting Operation Endgame (International). BreachHistory currently indexes 2 publicly disclosed or catalogued incidents spanning 2025 through 2026, with approximately 19.6 million records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.
The Operation Endgame breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.
Largest Operation Endgame Data Breaches
The largest indexed incidents include the 2025 Operation Endgame 2.0 — law-enforcement malware disruption dataset; 15.4M vic… and the 2026 Operation Endgame 4.0 — law-enforcement malware dataset; 4.2M emails to HIBP …. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Operation Endgame or a regulator. Below is the list of large data breaches:
- 2025 2025 Operation Endgame 2.0 — law-enforcement malware disruption dataset; 15.4M victim emails to HIBP — about 15.4M records exposed · Catalogued incident
- 2026 2026 Operation Endgame 4.0 — law-enforcement malware dataset; 4.2M emails to HIBP (Jun) — about 4.2M records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include email addresses, passwords and login credentials, physical addresses, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
Operation Endgame Data Breach 2026
At the time of this update, BreachHistory catalogues 1 2026 incident related to Operation Endgame. Most recent entry: 2026 Operation Endgame 4.0 — law-enforcement malware dataset; 4.2M emails to HIBP (Jun). New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.
What To Do If You Were Affected
If you believe your account may have been involved in a Operation Endgame data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.
This Operation Endgame breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.