Privacy Unpacked

Ransomware gang

Cicada3301

Claims on its leak site since 20 June 2024; none in the last 12 months

Claims, 12 months
0
Last 30 days
0
All claims
75
Last claim
4 September 2025
01020Nov 24: 0 claimsDec 24: 3 claimsJan 25: 1 claimsFeb 25: 13 claimsMar 25: 2 claimsApr 25: 5 claimsMay 25: 0 claimsJun 25: 0 claimsJul 25: 8 claimsAug 25: 0 claimsSept 25: 1 claimsOct 25: 0 claimsNov 25: 0 claimsDec 25: 0 claimsJan 26: 0 claimsFeb 26: 0 claimsMar 26: 0 claimsApr 26: 0 claimsMay 26: 0 claimsJun 26: 0 claimsJul 26: 0 claimsAug 26: 0 claimsSept 26: 0 claimsOct 26: 0 claims so farNov 24Jan 25Jan 26
Cicada3301’s claims per month, last 2 years. The last bar is the month so far.

Where its claimed victims are

  • United States4256%
  • United Kingdom68%
  • Canada45%
  • Brazil34%
  • France34%
  • Spain34%
  • Japan34%
  • Singapore34%

Sectors

  • Professional Services3040%
  • Technology1013%
  • Manufacturing1013%
  • Hospitality57%
  • Retail & E-Commerce45%
  • Transportation45%
  • Healthcare45%
  • Financial Services34%

Claims matched to an official notice

1 organisation Cicada3301 claimed also filed a breach notice with a regulator, all of them after the claim. Matched by name: the notice does not say who the attacker was.

  1. UFCW Local 135
    Claimed 22 August 2024 · notice filed with the California Attorney General 28 January 2025

What a claim is, and is not

A claim is a ransomware gang naming an organisation on its leak site, usually to pressure it into paying. It is the gang’s word: some claims are false, recycled from older breaches or exaggerated, and a claim says nothing about whose personal data, if any, was taken. That is why we count claims but do not list the organisations, and why a breach goes on the tracker as confirmed only when the organisation or a regulator says so.

How this is counted

Claims as collected from the gangs’ leak sites by ransomware.live, which says itself that they are unverified. We read its list every day and keep only counts: by month, by the victim’s country and by sector (as ransomware.live classifies them). Matches with official notices are by the organisation’s name, from 30 days before the claim to a year after it, against California’s and Washington’s full breach registers and every official notice on the tracker. A match is not a confirmation rate: those registers only see breaches of their own residents, and names are written differently. We never link to or visit leak sites.

Every gang →

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Found a mistake? Tell us and we correct it.