Ransomware group profile · #246 by claimed victims

Kryptos ransomware

Kryptos is a small ransomware group first observed in October 2025, conducting simultaneous attacks across North America and Oceania on its debut day with a focus on professional, technical, and legal service sectors, with only 3 known documented victims.

Active First seen Oct 2025

5Victims claimed on leak sites

0Victims in the last 30 days

0Victims in the last 90 days

5Countries hit

1Leak-site URLs tracked, 0 online

6 Nov 2025Latest claim recorded

Victimology

Who Kryptos claims to have breached, from 5 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Education1

Professional Services1

Other1

Financial Services1

Government & Defense1

Top countries

United States1

Canada1

Sri Lanka1

India1

Australia1

Latest claimed victims 5 most recent

Victim	Sector	Country	Claimed
Provincial Department of Health Services Sri Lanka healthdept.nw.gov.lk	Government & Defense	LK	6 Nov 2025
Adichunchanagiri Institute Of Technology aitckm.edu.in	Education	IN	24 Oct 2025
Mea************	Other	US	8 Oct 2025
Har******	Professional Services	AU	8 Oct 2025
Nor*************	Financial Services	CA	8 Oct 2025

All 5 Kryptos 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 Kryptos 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 Kryptos ransomware still active?

Kryptos is tracked as active. The most recent leak-site claim VULONE recorded is dated 6 November 2025.

How many victims has Kryptos claimed?

VULONE has recorded 5 leak-site victim claims attributed to Kryptos since October 2025, across 5 countries and 5 sectors.

Which industries does Kryptos target?

The sectors most often named on the Kryptos leak site are Education, Professional Services, Other.

Which countries are most affected by Kryptos?

Most Kryptos victims recorded by VULONE are located in United States, Canada, Sri Lanka.

Where does VULONE get Kryptos 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].