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Inactive · #205 by victimsRansomware group

Blackout

As of Oct 19, 2026, Blackout has listed 13 confirmed victims on its leak site since Feb 1, 2024, 0.0% of all victims tracked by Brandefense. Its most targeted country is France (15.4% of its victims) and its most targeted sector is Technology.

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.

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Confirmed Victims
13
Rank By Victims
#205
Last Leak-Site Post
Jul 19, 2026
Top Country
France
Top Sector
Technology

Victims Posted Per Month.

Blackout confirmed victims per month
MonthConfirmed victims
November 20250
December 20250
January 20260
February 20261
March 20260
April 20260
May 20260
June 20260
July 20263
August 20260
September 20260
October 2026 (month in progress)0
Updated continuously · figures as of Oct 19, 2026

Latest Blackout Victims.

Search all 13 →
Latest confirmed leak-site victims claimed by Blackout
VictimCountryIndustryData claimedPosted
yano.tokyo
yano.tokyo
JPJapanTechnologyNot stated
miatech.net
miatech.net
USUnited StatesTechnologyNot stated
bluebellgroup.com
bluebellgroup.com
HKHong KongRetailNot stated
en.yofc.com
yofc.com
CNChinaTelecommunicationsNot stated
nedamaritime.gr
nedamaritime.gr
GRGreeceUnknownNot stated
cdc-biodiversite.fr
cdc-biodiversite.fr
FRFranceConsultingNot stated

How They Operate.

Blackout's threat actor profile lists 1 malware and tools, with its targets and related actors.

TTPs, CVEs and malware →

Who Blackout Targets.

Sectors

  1. Technology323.1%
  2. Telecommunications215.4%
  3. Consulting17.7%
  4. Food and Beverage17.7%
  5. Hospitality and Tourism17.7%

Countries

  1. FRFrance215.4%
  2. GRGreece215.4%
  3. CACanada17.7%
  4. CNChina17.7%
  5. DEGermany17.7%
Shares are of this group's confirmed victims.

History.


  1. First confirmed victim listed on its leak site

  2. First seen in Brandefense data

  3. Busiest month on record: 3 confirmed victims

  4. Most recent leak-site post

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.