Ransomware group profile · #53 by claimed victims

Interlock ransomware

Interlock is a ransomware group first observed in September 2024 that targets critical infrastructure sectors including healthcare, government, education, and technology across North America and Europe using double-extortion, with 57+ claimed victims including a major US dialysis provider exposing over two million patient records.

Active First seen Oct 2024

145Victims claimed on leak sites

16Victims in the last 30 days

26Victims in the last 90 days

9Countries hit

273Leak-site URLs tracked, 0 online

31 Oct 2026Latest claim recorded

Victimology

Who Interlock claims to have breached, from 145 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Education33

Manufacturing23

Professional Services20

Healthcare18

Government & Defense17

Retail & E-Commerce8

Financial Services5

Hospitality4

Top countries

United States107

Canada9

United Kingdom7

Australia6

Italy2

Chile1

Ireland1

Poland1

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
Meadows Valley School District	-	-	31 Oct 2026
Ridgway High School	-	-	31 Oct 2026
Southwest Orthopedic & Reconstructive Specialists	-	-	29 Oct 2026
Madison Honda	-	-	23 Oct 2026
Custom Floors Unlimited	-	-	23 Oct 2026
Coastal Alabama Community College coastalalabama.edu	Education	US	21 Oct 2026
Pedigo Products, Inc. pedigo products, inc.	Manufacturing	US	12 Oct 2026
Valenti Management valentichilisrestaurants.com	Professional Services	CL	12 Oct 2026
Concord Eye Center	Healthcare	US	12 Oct 2026
Greentech Environmental	Energy & Utilities	-	12 Oct 2026
Engineers Contractors Fabricators Inc. (ECF) engineers contractors fabricators inc. (ecf)	Manufacturing	US	12 Oct 2026
Nu-Quest Distribution Inc	Retail & E-Commerce	US	12 Oct 2026

All 145 Interlock 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.

Start free Sign in

Tactics, techniques and procedures

ATT&CK technique mapping for Interlock 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 Interlock ransomware still active?

Interlock is tracked as active. The most recent leak-site claim VULONE recorded is dated 31 October 2026. 16 victims were claimed in the last 30 days.

How many victims has Interlock claimed?

VULONE has recorded 145 leak-site victim claims attributed to Interlock since October 2024, across 9 countries and 14 sectors.

Which industries does Interlock target?

The sectors most often named on the Interlock leak site are Education, Manufacturing, Professional Services.

Which countries are most affected by Interlock?

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

Where does VULONE get Interlock 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 31 October 2026. Questions or corrections: research@vulone.com.