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Inactive · #76 by victimsRansomware group

Monti

As of Oct 19, 2026, Monti has listed 90 confirmed victims on its leak site since Mar 13, 2023, 0.3% of all victims tracked by Brandefense. Its most targeted country is United States (46.7% of its victims) and its most targeted sector is Consulting.

Monti is a ransomware group first observed in June 2022 that initially copied nearly all of Conti's leaked source code, pivoting to target government, legal, and healthcare entities, later releasing a new Linux variant in 2023 with significantly less Conti code similarity, and experimenting with an affiliate model.

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Confirmed Victims
90
Rank By Victims
#76
Last Leak-Site Post
Jul 12, 2025
Top Country
United States
Top Sector
Consulting

Victims Posted Per Month.

Monti confirmed victims per month
MonthConfirmed victims
March 20234
April 20230
May 20235
June 20231
July 20232
August 20232
September 20234
October 202311
November 20236
December 20237
January 20242
February 20243
March 20240
April 20240
May 20246
June 20242
July 20244
August 20249
September 20240
October 20240
November 20245
December 20241
January 20257
February 20251
March 20254
April 20250
May 20252
June 20250
July 20252
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 Monti Victims.

Search all 90 →
Latest confirmed leak-site victims claimed by Monti
VictimCountryIndustryData claimedPosted
Regional Transportation Authority
rtachicago.org
USUnited StatesHospitality and TourismNot stated
Every one of you been a good customer this yearUnknownUnknownNot stated
Amtech Software
amtechsoftware.com
USUnited StatesTechnologyNot stated
American Eagle Logistics
aeagleoilfield.com
USUnited StatesUnknownNot stated
CD
cd-custom.com
JPJapanUnknownNot stated
AGI
agi.net
USUnited StatesUnknownNot stated

How They Operate.

Monti's threat actor profile lists 2 malware and tools, with its targets and related actors.

TTPs, CVEs and malware →

Who Monti Targets.

Sectors

  1. Consulting66.7%
  2. Manufacturing55.6%
  3. Education and Research44.4%
  4. Healthcare44.4%
  5. Construction33.3%

Countries

  1. USUnited States4246.7%
  2. CACanada910.0%
  3. DEGermany66.7%
  4. ITItaly44.4%
  5. FRFrance33.3%
Shares are of this group's confirmed victims.

History.


  1. First confirmed victim listed on its leak site

  2. Busiest month on record: 11 confirmed victims

  3. First seen in Brandefense data

  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.