Ransomware group profile · #173 by claimed victims

Tridentlocker ransomware

TridentLocker is a newly emerged ransomware group (surfaced mid-2025) targeting organizations managing high volumes of regulated or third-party data — including government services, telecom, and engineering firms — across the US, Canada, UK, and Asia using double-extortion tactics.

Active First seen Nov 2025

17Victims claimed on leak sites

1Victims in the last 30 days

1Victims in the last 90 days

7Countries hit

2Leak-site URLs tracked, 0 online

4 Sep 2026Latest claim recorded

Victimology

Who Tridentlocker claims to have breached, from 17 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Technology5

Professional Services3

Energy & Utilities2

Manufacturing2

Other1

Government & Defense1

Top countries

United States7

United Kingdom3

Canada2

South Korea1

Japan1

Belgium1

Iraq1

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
SouthernCarlson southerncarlson.com	Not Found	—	4 Sep 2026
RT Software rtsw.co.uk	Technology	GB	27 Apr 2026
Jameson Pepple Cantu PLLC jpclaw.com	Professional Services	US	5 Mar 2026
TMPartner tm-partner.ch	Other	JP	6 Feb 2026
Eco Green Group ecogreengroup.co.uk	Energy & Utilities	GB	12 Jan 2026
Sedgwick Government Solutions sedgwickgovernment.com	Government & Defense	US	30 Dec 2025
allenprinting allenprinting.com	Professional Services	US	19 Dec 2025
noment noment.com	Not Found	US	2 Dec 2025
bpost bpost.be	Technology	BE	1 Dec 2025
GuestTek guesttek.com	Technology	CA	29 Nov 2025
Advantage 360 advantage360.com	Technology	US	29 Nov 2025
iqs	Not Found	IQ	29 Nov 2025

All 17 Tridentlocker victims, searchable

Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.

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Tactics, techniques and procedures

ATT&CK technique mapping for Tridentlocker is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is Tridentlocker ransomware still active?

Tridentlocker is tracked as active. The most recent leak-site claim VULONE recorded is dated 4 September 2026. 1 victims were claimed in the last 30 days.

How many victims has Tridentlocker claimed?

VULONE has recorded 17 leak-site victim claims attributed to Tridentlocker since November 2025, across 7 countries and 7 sectors.

Which industries does Tridentlocker target?

The sectors most often named on the Tridentlocker leak site are Technology, Professional Services, Energy & Utilities.

Which countries are most affected by Tridentlocker?

Most Tridentlocker victims recorded by VULONE are located in United States, United Kingdom, Canada.

Where does VULONE get Tridentlocker victim data?

Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

Other ransomware groups

Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].