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Active · #57 by victimsRansomware group

Arcus Media

As of Oct 19, 2026, Arcus Media has listed 124 confirmed victims on its leak site since May 8, 2024, 0.4% of all victims tracked by Brandefense. Its most targeted country is Brazil (21.8% of its victims) and its most targeted sector is Technology.

Arcus Media is a ransomware-as-a-service group that emerged in May 2024, employing double extortion with ChaCha20 + RSA-2048 encryption and recruiting affiliates via a referral-based vetting process, claiming 50+ victims across manufacturing, healthcare, retail, and business services globally.

Also known asarcusmedia
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Confirmed Victims
124
Rank By Victims
#57
Last Leak-Site Post
Oct 9, 2026
Top Country
Brazil
Top Sector
Technology

Victims Posted Per Month.

Arcus Media confirmed victims per month
MonthConfirmed victims
November 20251
December 20250
January 20260
February 20260
March 20260
April 20260
May 20260
June 20260
July 20269
August 20262
September 20266
October 2026 (month in progress)3
Updated continuously · figures as of Oct 19, 2026

Latest Arcus Media Victims.

Search all 124 →
Latest confirmed leak-site victims claimed by Arcus Media
VictimCountryIndustryData claimedPosted
AETHOS
aethos.com
USUnited StatesHospitality and TourismNot stated
mblllp
mblllp.com
USUnited StatesLegal ServicesNot stated
Ladrillera Mecanizada
ladrilleramecanizada.com
MXMexicoConstructionNot stated
Pantaneiro Capas
pantaneiro.com.br
BRBrazilManufacturingNot stated
AGROFRUTO SAC
agrofruto.pe
PEPeruFood and BeverageNot stated
Schneider’s Computing
scomputing.ca
CACanadaTechnologyNot stated

How They Operate.

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

TTPs, CVEs and malware →

Who Arcus Media Targets.

Sectors

  1. Technology108.1%
  2. Manufacturing86.5%
  3. Consulting64.8%
  4. Education and Research32.4%
  5. Retail32.4%

Countries

  1. BRBrazil2721.8%
  2. USUnited States1612.9%
  3. ESSpain75.6%
  4. AUAustralia43.2%
  5. COColombia43.2%
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: 17 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.