blackout
Activity analysis
HackerFeeds has tracked 12 victims claimed by blackout since February 2024, most recently in July 2026 — ranking #210 of 332 groups (0% of all tracked ransomware victims). It posted 0 victims in the last 90 days, down 100% on the previous 90 days (3). Its most-targeted sector is Healthcare (3 victims), followed by Technology (2). Greece accounts for 2 victims (18% of those with a known location); 1 victims did not disclose a location.
Victims per year
- 20249
- 20263
Top sectors
- Healthcare3
- Technology2
- Business Services2
- Transportation/Logistics1
- Public Sector1
- Professional Services1
Top countries
Computed from victims claimed on the group's leak site as collected by HackerFeeds; claims are not independently verified. Monthly reports · Methodology
Group profile
Blackout is a ransomware group that first appeared in early 2024, initially claiming attacks against healthcare entities in Canada, France, and Germany before expanding to telecommunications, mining, and manufacturing sectors, operating a double-extortion model with a data leak site.
Recent victims
No victims tracked yet.