Ransomware gang
Black Basta
Claims on its leak site since 26 April 2022; none in the last 12 months
- Claims, 12 months
- 0
- Last 30 days
- 0
- All claims
- 523
- Last claim
- 11 January 2025
Where its claimed victims are
Sectors
Claims matched to an official notice
6 organisations Black Basta claimed also filed a breach notice with a regulator, 5 of them after the claim (a median of 207 days later). Matched by name: the notice does not say who the attacker was.
- KTBS Law LLP
Claimed 23 January 2024 · notice filed with the California Attorney General 14 November 2024 - Olson & Co Steel
Claimed 4 May 2024 · notice filed with the California Attorney General 3 July 2024 - Simpson Strong-Tie Co. Inc.
Claimed 21 October 2023 · notice filed with the California Attorney General 21 March 2024 - Tri Counties Bank
Claimed 19 March 2023 · notice filed with the California Attorney General 12 October 2023 - IMA Financial Group, Inc.
Claimed 16 November 2022 · notice filed with the California Attorney General 28 June 2023 - Nor-Cal Beverage Co., Inc.
Claimed 19 March 2023 · notice filed with the California Attorney General 7 March 2023
Government advisories
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.
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.