Ransomware group profile · #72 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

101Victims claimed on leak sites

1Victims in the last 30 days

9Victims in the last 90 days

16Countries hit

28Leak-site URLs tracked, 9 online

14 Oct 2026Latest claim recorded

Victimology

Who Kairos claims to have breached, from 101 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Professional Services19

Healthcare14

Education13

Government & Defense11

Manufacturing9

Retail & E-Commerce9

Financial Services5

Agriculture and Food Production4

Top countries

United States57

Australia13

United Kingdom7

Canada4

France4

Germany3

Slovakia2

Spain2

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
Oceania Digital Communications	Technology	VU	14 Oct 2026
Slate Valley Unified School District slatevalleyunified.org	Education	US	1 Oct 2026
Le Centre National de l'Expertise Hospitalière (CNEH)	Healthcare	FR	30 Sep 2026
Unique Repair Services	Other	US	29 Sep 2026
Krapf Group	Manufacturing	US	22 Sep 2026
Leisure Coast Kitchens	Retail & E-Commerce	AU	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

All 101 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 14 October 2026. 1 victims were claimed in the last 30 days.

How many victims has Kairos claimed?

VULONE has recorded 101 leak-site victim claims attributed to Kairos since November 2024, across 16 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 31 October 2026. Questions or corrections: research@vulone.com.