Cicada3301 Ransomware
A data-only profile of Cicada3301, built from its leak-site claims: how much it posts, when, and who it goes after. We make no attribution claim on this page.
Claimed victims
45
Status
Quiet
Last 30 days
0
Top region
United States
Top sector
Professional Services
What the data says
Cicada3301 ranks #85 of the 122 groups profiled here, with 45 claimed victims (0.2% of all claims we track).
Its earliest reliably dated claim in our data is 20 June 2024; the latest is 25 October 2024.
Its claims lean toward Professional Services: 40% of its sector-labelled claims, against 19% across all groups (2.1× the usual share).
50% of its claims with a known country are in the United States.
Cicada3301 activity, last 24 months
Claims per month, by the date our trackers first saw them, so batches can land late. We have almost no collection from June 2025 to March 2026: an empty stretch there means we weren't looking, not that the group was idle. The current month is partial.
Regions targeted
Sectors targeted
Sector and country come from the claim where it states one, otherwise from a rule or language-model label on the victim. Low-confidence sector labels are left out.
Related groups
Ransomware crews share affiliates, tooling, operators and targets; brands fall and reappear under new names. Related to:
Frequently asked questions
Is Cicada3301 still active?
Quiet: no claims in our data since 25 October 2024.
How many victims has Cicada3301 claimed?
We track 45 victims claimed by Cicada3301 on its leak site. Claims are the group's own statements and are not independently verified.
Is Cicada3301 sanctioned?
We don't record a specific sanctions designation for Cicada3301. That is not clearance: check current OFAC and UK lists, and take legal advice, before any payment is discussed.
What sectors and regions does Cicada3301 target?
In our data Cicada3301 most often hits Professional Services, and organisations in US, CH, GB, DK.
Where is Cicada3301 believed to be based?
We don't publish an origin attribution for Cicada3301.
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