Datasets/KEV Catalog Threat Actors

Rosetta Lab ↗Blur Horizon LLC

Millennium — claimed by 1 ransomware group · Rosetta Intel

Datasets

Millennium

Claimed victim

1 group1 claims2026-04-22

Claimed by

2026-04-22

Refs ↗https://www.ransomlook.io/company?dataBlobId=312c4039-9ffe-4791-b733-99cc9236d71c

Groups publish these on their own leak sites. A claim is not a confirmed breach — treat every entry as an assertion, not a fact.