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Ransomware group profile · #195 by claimed victims

Blackout ransomware

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.

Active First seen Feb 2024
12Victims claimed on leak sites
0Victims in the last 30 days
3Victims in the last 90 days
9Countries hit
9Leak-site URLs tracked, 5 online
19 Jul 2026Latest claim recorded

Victimology

Who Blackout claims to have breached, from 12 leak-site posts recorded by VULONE.

Claims per month last 12 months

Oct 2025: 0OctNov 2025: 0Dec 2025: 0Jan 2026: 0JanFeb 2026: 0Mar 2026: 0Apr 2026: 0AprMay 2026: 0Jun 2026: 0Jul 2026: 3JulAug 2026: 0Sep 2026: 0

Top sectors

Healthcare3
Professional Services3
Technology2
Manufacturing1
Transportation1
Government & Defense1
Hospitality1

Top countries

Greece2
France2
Germany1
United Kingdom1
Canada1
Croatia1
Japan1
Mexico1

Latest claimed victims 12 most recent

VictimSectorCountryClaimed
yano.tokyo yano.tokyo Technology JP 19 Jul 2026
www.miatech.net miatech.net Technology US 19 Jul 2026
bluebellgroup.com bluebellgroup.com Professional Services GB 19 Jul 2026
nedamaritime.gr nedamaritime.gr Transportation GR 10 Dec 2024
cdc-biodiversite.fr cdc-biodiversite.fr Government & Defense FR 29 Sep 2024
antaeustravel.com antaeustravel.com Hospitality GR 22 Aug 2024
luzan5.com luzan5.com Healthcare 14 Jul 2024
badel1862.hr badel1862.hr Professional Services HR 3 Jul 2024
mcmtelecom.com mcmtelecom.com Professional Services MX 29 May 2024
ht-hospitaltechnik.de ht-hospitaltechnik.de Healthcare DE 18 Apr 2024
ch-armentieres.fr ch-armentieres.fr Healthcare FR 26 Feb 2024
metal7.com metal7.com Manufacturing CA 26 Feb 2024

All 12 Blackout victims, searchable

Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.

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Tactics, techniques and procedures

ATT&CK technique mapping for Blackout is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is Blackout ransomware still active?
Blackout is tracked as active. The most recent leak-site claim VULONE recorded is dated 19 July 2026.
How many victims has Blackout claimed?
VULONE has recorded 12 leak-site victim claims attributed to Blackout since February 2024, across 9 countries and 7 sectors.
Which industries does Blackout target?
The sectors most often named on the Blackout leak site are Healthcare, Professional Services, Technology.
Which countries are most affected by Blackout?
Most Blackout victims recorded by VULONE are located in Greece, France, Germany.
Where does VULONE get Blackout victim data?
Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

Other ransomware groups

Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].