National Kidney Registry allegedly hacked by DireWolf ransomware group

Executive Summary

The National Kidney Registry (NKR) is alleged to have been compromised by the DireWolf ransomware group, which surfaced in May 2025 and has targeted over 100 U.S. healthcare organizations. DireWolf’s attacks involve encrypting victims’ files and demanding ransom as part of a double‑extortion strategy. The group claims to be financially motivated.


Intelligence Metadata - Source Publisher: DataBreaches.net - Published Date: 2026-08-26T13:29:23+00:00 - Category: data-breaches

Original Description: Since its emergence in May 2025, DireWolf has attacked several U.S. healthcare entities, as listed among its more than 100 targets on its dedicated leak site. As early analysts reporting on the group have noted, DireWolf encrypts victims’ files as part of their double-extortion attacks. Their “About” statement describes them as financially motivated: We are... Source

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Source: DataBreaches.net