Ransomware group profile · #71 by claimed victims

Kairos ransomware

Kairos is a data extortion group active since late 2024 that focuses solely on data theft with no encryption, primarily targeting small-to-mid-sized organizations in healthcare, manufacturing, and business services in the US, purchasing initial access from brokers and demanding Bitcoin payments.

Active First seen Nov 2024

96Victims claimed on leak sites

3Victims in the last 30 days

8Victims in the last 90 days

15Countries hit

11Leak-site URLs tracked, 1 online

16 Sep 2026Latest claim recorded

Victimology

Who Kairos claims to have breached, from 96 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Professional Services19

Healthcare13

Education12

Government & Defense11

Retail & E-Commerce8

Manufacturing8

Financial Services5

Agriculture and Food Production4

Top countries

United States54

Australia12

United Kingdom7

Canada4

Germany3

France3

Spain2

Denmark2

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
Leisure Coast Kitchens	—	—	16 Sep 2026
Ville de Libercourt libercourt.fr	Government & Defense	FR	2 Sep 2026
Ayuntamiento de Velilla de San Antonio ayto-velilla.es	Government & Defense	ES	20 Aug 2026
Hightech Signs hightech-signs.com	Manufacturing	US	12 Aug 2026
Warwick Fabrics warwick.com.nz	Manufacturing	NZ	30 Jul 2026
Thermalex Inc tmxinc.com	Manufacturing	US	25 Jul 2026
LR Reed	Professional Services	AU	22 Jul 2026
College O'Sullivan de Québec osullivan.edu	Education	CA	20 Jul 2026
Mortensenlawoffices	Professional Services	US	1 Jun 2026
Commune De Camiers camiers.fr	Government & Defense	FR	29 May 2026
McCarthy Inc mccarthyinc.com	Manufacturing	US	15 May 2026
Arwini	Not Found	DE	11 May 2026

All 96 Kairos 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 Kairos 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.

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Frequently asked

Is Kairos ransomware still active?

Kairos is tracked as active. The most recent leak-site claim VULONE recorded is dated 16 September 2026. 3 victims were claimed in the last 30 days.

How many victims has Kairos claimed?

VULONE has recorded 96 leak-site victim claims attributed to Kairos since November 2024, across 15 countries and 14 sectors.

Which industries does Kairos target?

The sectors most often named on the Kairos leak site are Professional Services, Healthcare, Education.

Which countries are most affected by Kairos?

Most Kairos victims recorded by VULONE are located in United States, Australia, United Kingdom.

Where does VULONE get Kairos 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].