Ransomware group profile · #44 by claimed victims

Cloak ransomware

Cloak is a ransomware-as-a-service operation active since late 2022, primarily targeting small-to-medium enterprises in Europe — especially Germany — across manufacturing, healthcare, education, and government sectors, with expansion into North American and Asian targets by 2025.

Active First seen Aug 2023

171Victims claimed on leak sites

5Victims in the last 30 days

5Victims in the last 90 days

30Countries hit

39Leak-site URLs tracked, 1 online

25 Oct 2026Latest claim recorded

Victimology

Who Cloak claims to have breached, from 171 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Professional Services33

Manufacturing16

Technology15

Financial Services9

Healthcare8

Government & Defense7

Transportation6

Retail & E-Commerce4

Top countries

United States42

Germany39

United Kingdom10

Canada7

France4

Switzerland4

Spain3

Italy3

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
tek****om.pl	-	-	25 Oct 2026
dr-****le.de	-	-	25 Oct 2026
mediporta.ch	-	-	24 Oct 2026
******rta.ch ******rta.ch	Not Found	CH	18 Oct 2026
dac******er.de dac******er.de	Not Found	DE	18 Oct 2026
ra-vogeler.de ra-vogeler.de	Professional Services	DE	18 Jun 2026
ra-*******e	Not Found	-	16 Jun 2026
d**********e	Not Found	-	16 Jun 2026
W****S*****D	Not Found	-	16 Jun 2026
suffolkva.us suffolkva.us	Government & Defense	US	24 Feb 2026
**el-p*.de el-p***.de	Not Found	DE	24 Feb 2026
Dinnebiergruppe.de dinnebiergruppe.de	Retail & E-Commerce	DE	19 Feb 2026

All 171 Cloak 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 Cloak 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 Cloak ransomware still active?

Cloak is tracked as active. The most recent leak-site claim VULONE recorded is dated 25 October 2026. 5 victims were claimed in the last 30 days.

How many victims has Cloak claimed?

VULONE has recorded 171 leak-site victim claims attributed to Cloak since August 2023, across 30 countries and 14 sectors.

Which industries does Cloak target?

The sectors most often named on the Cloak leak site are Professional Services, Manufacturing, Technology.

Which countries are most affected by Cloak?

Most Cloak victims recorded by VULONE are located in United States, Germany, United Kingdom.

Where does VULONE get Cloak 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.

VULONE research mentioning Cloak

Inside a Commercial Account-Takeover Operation: Device-Trust Abuse Against Brazilian Retail AccountsA commercial account-takeover service that forged “trusted device” records to sign into Brazilian retail accounts without ever triggering a

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.