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Active · #25 by victimsRansomware group

Kill Security

As of Oct 19, 2026, Kill Security has listed 277 confirmed victims on its leak site since Mar 21, 2024, 0.9% of all victims tracked by Brandefense. Its most targeted country is United States (35.4% of its victims) and its most targeted sector is Financial Services.

KillSec originated as a hacktivist group aligned with the Anonymous movement before pivoting to ransomware operations in October 2023, officially launching a RaaS platform in June 2024 with an affiliate-friendly 88% revenue split, primarily targeting healthcare, financial services, and government sectors with over 250 documented victims as of late 2025.

Also known askillsec
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Confirmed Victims
277
Rank By Victims
#25
Last Leak-Site Post
Sep 18, 2026
Top Country
United States
Top Sector
Financial Services

Victims Posted Per Month.

Kill Security confirmed victims per month
MonthConfirmed victims
November 20252
December 20258
January 20262
February 20265
March 20268
April 20260
May 20263
June 20260
July 20263
August 20261
September 20261
October 2026 (month in progress)0
Updated continuously · figures as of Oct 19, 2026

Latest Kill Security Victims.

Search all 277 →
Latest confirmed leak-site victims claimed by Kill Security
VictimCountryIndustryData claimedPosted
Giti Corp
giti-corp.com
CNChinaManufacturingNot stated
Global Go
globalgo.consulting
USUnited StatesConsultingNot stated
cashcowboy
cashcowboy.net
CACanadaFinancial ServicesNot stated
Bulwark Exterminating
bulwarkpestcontrol.com
USUnited StatesEducation and ResearchNot stated
origins ivf
originsivf.com
INIndiaHealthcareNot stated
dsdlawfirm.comUSUnited StatesConsultingNot stated

How They Operate.

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

TTPs, CVEs and malware →

Who Kill Security Targets.

Sectors

  1. Financial Services2910.5%
  2. Consulting279.7%
  3. Healthcare165.8%
  4. Technology165.8%
  5. Education and Research103.6%

Countries

  1. USUnited States9835.4%
  2. INIndia5519.9%
  3. GBUnited Kingdom145.1%
  4. BRBrazil114.0%
  5. AUAustralia72.5%
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: 34 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.