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DonutLeaks is a leak-site extortion actor observed publicly claiming responsibility for at least one intrusion against a U.S. healthcare organization in 2024. The group, also referred to as Donut, used a dark web leak site to post a victim listing for an orthopedic medical practice. Available reporting supports the existence of the actor’s branding and leak-site activity, but does not provide high-confidence confirmation of the underlying intrusion details, victim impact, malware use, or whether stolen data was ultimately published or sold. Based on the confirmed behavior, DonutLeaks should be characterized as an extortion-oriented threat actor that leveraged public victim shaming and claimed compromise through a leak platform. No reliable attribution to a nation state, no confirmed sub-groups, and no broader operational profile are currently available from the supplied facts.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
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