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Storm-0593 is a Microsoft-tracked developing threat cluster that has been observed in operational handoff patterns involving Aqua Blizzard. It has been referenced as one of several still-maturing "Storm" designations used for groups that have not yet been elevated to a finalized actor name. High-confidence reporting links Aqua Blizzard and Secret Blizzard to Russia’s Federal Security Service, and Storm-0593 has been cited in the same context of similar handoff-style collaboration, but a direct standalone attribution for Storm-0593 is not currently available from the supplied facts. The most notable reported characteristic associated with Storm-0593 is participation in a collaborative intrusion model in which one actor appears to facilitate access that is then leveraged by another actor for follow-on operations. This places Storm-0593 in a broader ecosystem of Russian-linked intrusion activity centered on staged access, operational specialization, and downstream exploitation by partner clusters. Specific malware families, victimology, and tradecraft uniquely attributable to Storm-0593 are not established at high confidence in the available facts. Based on the available information, Storm-0593 should be understood as a developing cluster associated with handoff-enabled intrusion activity rather than a fully profiled threat actor with independently documented tooling, targeting, or mission set.
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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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