Privacy Unpacked

Ransomware gang

Genesis

Claims on its leak site since 21 October 2025, number 18 of all gangs in the last 12 months

Claims, 12 months
113
Last 30 days
5
All claims
122
Last claim
28 October 2026
0102030Nov 24: 0 claimsDec 24: 0 claimsJan 25: 0 claimsFeb 25: 0 claimsMar 25: 0 claimsApr 25: 0 claimsMay 25: 0 claimsJun 25: 0 claimsJul 25: 0 claimsAug 25: 0 claimsSept 25: 0 claimsOct 25: 12 claimsNov 25: 4 claimsDec 25: 8 claimsJan 26: 11 claimsFeb 26: 10 claimsMar 26: 17 claimsApr 26: 2 claimsMay 26: 21 claimsJun 26: 6 claimsJul 26: 18 claimsAug 26: 6 claimsSept 26: 2 claimsOct 26: 5 claims so farNov 24Jan 25Jan 26
Genesis’s claims per month, last 2 years. The last bar is the month so far.

Where its claimed victims are

  • United States10889%
  • United Kingdom43%
  • Canada22%
  • Denmark11%
  • Jamaica11%
  • Spain11%
  • Malaysia11%

Sectors

  • Professional Services3025%
  • Healthcare2621%
  • Manufacturing1613%
  • Technology1210%
  • Financial Services97%
  • Retail & E-Commerce76%
  • Energy & Utilities54%
  • Government & Defense32%

Claims matched to an official notice

6 organisations Genesis claimed also filed a breach notice with a regulator, 5 of them after the claim (a median of 122 days later). Matched by name: the notice does not say who the attacker was.

  1. Dill Dill Carr Stonbraker & Hutchings, P.C.
    Claimed 9 December 2025 · notice filed with the California Attorney General 22 October 2026
  2. American Board of Preventive Medicine
    Claimed 9 May 2026 · notice filed with the California Attorney General 13 October 2026
  3. Interim HealthCare Inc.
    Claimed 10 August 2026 · notice filed with the US Department of Health and Human Services 31 July 2026
  4. Sierra Management Group
    Claimed 7 March 2026 · notice filed with the California Attorney General 29 June 2026
  5. IMA Diligence Services, LLC
    Claimed 27 January 2026 · notice filed with the California Attorney General 29 May 2026
  6. Stockton Cardiology Medical Group
    Claimed 17 February 2026 · notice filed with the California Attorney General 20 March 2026

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.

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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.