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Inactive · #181 by victimsRansomware group

Sabbath

As of Oct 19, 2026, Sabbath has listed 17 confirmed victims on its leak site since Jul 11, 2025, 0.1% of all victims tracked by Brandefense.

Sabbath (also known as 54BB47h, operated by UNC2190) is a ransomware group active from mid-2021 that emerged as a rebrand of the Arcane ransomware, targeting critical infrastructure in the US and Canada, particularly hospitals, schools, and natural resources, using double extortion, backup destruction, and affiliate recruitment on Russian-language dark web forums.

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Confirmed Victims
17
Rank By Victims
#181
Last Leak-Site Post
Jul 11, 2025
Top Country
Unknown
Top Sector
Unknown

Victims Posted Per Month.

Sabbath confirmed victims per month
MonthConfirmed victims
July 202517
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 Sabbath Victims.

Search all 17 →
Latest confirmed leak-site victims claimed by Sabbath
VictimCountryIndustryData claimedPosted
Summit CollegeUnknownUnknownNot stated
Close drawerUnknownUnknownNot stated
aria-label=Google>UnknownUnknownNot stated
JALEEL TRADERS LLCUnknownUnknownNot stated
ASL Napoli 3 Sud Network SeizedUnknownUnknownNot stated
Protected: PRIVATE POST ITALYUnknownUnknownNot stated

How They Operate.

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

TTPs, CVEs and malware →

History.


  1. First seen in Brandefense data

  2. Busiest month on record: 17 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.