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Inactive · #138 by victimsRansomware group

Blackmatter

As of Oct 19, 2026, Blackmatter has listed 31 confirmed victims on its leak site since Jul 11, 2025, 0.1% of all victims tracked by Brandefense. Its most targeted country is United States (3.2% of its victims) and its most targeted sector is Financial Services.

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Confirmed Victims
31
Rank By Victims
#138
Last Leak-Site Post
Jul 12, 2025
Top Country
United States
Top Sector
Financial Services

Victims Posted Per Month.

Blackmatter confirmed victims per month
MonthConfirmed victims
July 202531
August 20250
September 20250
October 20250
November 20250
December 20250
January 20260
February 20260
March 20260
April 20260
May 20260
June 20260
July 20260
August 20260
September 20260
October 2026 (month in progress)0
Updated continuously · figures as of Oct 19, 2026

Latest Blackmatter Victims.

Search all 31 →
Latest confirmed leak-site victims claimed by Blackmatter
VictimCountryIndustryData claimedPosted
National Beverage
nationalbeverage.com
USUnited StatesFinancial ServicesNot stated
KeycentrixUnknownUnknownNot stated
Jobbers Meat Packing Co., Inc.UnknownUnknownNot stated
Home State BankUnknownUnknownNot stated
Armour Transportation SystemsUnknownUnknownNot stated
ZKTeco USAUnknownUnknownNot stated

How They Operate.

Blackmatter's threat actor profile lists 37 ATT&CK techniques, 11 malware and tools, with its targets and related actors.

TTPs, CVEs and malware →

Who Blackmatter Targets.

Sectors

  1. Financial Services13.2%

Countries

  1. USUnited States13.2%
Shares are of this group's confirmed victims.

History.


  1. First seen in Brandefense data

  2. Busiest month on record: 31 confirmed victims

  3. First confirmed victim listed on its leak site

  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.