Ransomware group profile · #74 by claimed victims

Abyss ransomware

Abyss (also known as Abyss Locker) is a ransomware operation first identified in March 2023, derived from the Babuk source code, that targets Windows and Linux/VMware ESXi systems using double-extortion tactics across healthcare, manufacturing, finance, and technology sectors — predominantly in North America.

Active First seen Mar 2023

91Victims claimed on leak sites

1Victims in the last 30 days

1Victims in the last 90 days

15Countries hit

0Leak-site URLs tracked

26 Aug 2026Latest claim recorded

Victimology

Who Abyss claims to have breached, from 91 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Professional Services22

Technology14

Healthcare13

Manufacturing12

Agriculture and Food Production8

Financial Services6

Transportation4

Retail & E-Commerce3

Top countries

United States43

United Kingdom4

Canada3

Germany2

Hong Kong2

Switzerland2

Japan1

Austria1

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
MEMSIC	Manufacturing	US	26 Aug 2026
School Facility Consultants	Professional Services	—	1 Jun 2026
landkreis-limburg-weilburg.de landkreis-limburg-weilburg.de	Government & Defense	DE	1 Jun 2026
technic.com technic.com	Technology	US	14 May 2026
thinlinetech.com thinlinetech.com	Technology	US	26 Feb 2026
sitoy.com sitoy.com	Retail & E-Commerce	HK	26 Jan 2026
dillonyarn.com dillonyarn.com	Agriculture and Food Production	US	10 Dec 2025
optimumdesign.com optimumdesign.com	Technology	US	22 Sep 2025
moinian.com moinian.com	Hospitality	US	11 Sep 2025
hptc.org hptc.org	Healthcare	US	26 Jul 2025
crownlaboratories.com crownlaboratories.com	Healthcare	US	2 Apr 2025
entandallergy.com entandallergy.com	Healthcare	US	28 Mar 2025

All 91 Abyss 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 Abyss 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 Abyss ransomware still active?

Abyss is tracked as active. The most recent leak-site claim VULONE recorded is dated 26 August 2026. 1 victims were claimed in the last 30 days.

How many victims has Abyss claimed?

VULONE has recorded 91 leak-site victim claims attributed to Abyss since March 2023, across 15 countries and 13 sectors.

Which industries does Abyss target?

The sectors most often named on the Abyss leak site are Professional Services, Technology, Healthcare.

Which countries are most affected by Abyss?

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

Where does VULONE get Abyss 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].