Ransomware group profile · #147 by claimed victims

Fulcrumsec ransomware

FulcrumSec is a data extortion group active since approximately September 2025, specializing in high-speed exfiltration of cloud-hosted databases by exploiting unrotated API keys and misconfigured cloud permissions rather than deploying encryption, with known victims including Australian fintech youX and LexisNexis.

Active First seen May 2026

29Victims claimed on leak sites

2Victims in the last 30 days

4Victims in the last 90 days

13Countries hit

4Leak-site URLs tracked, 1 online

23 Oct 2026Latest claim recorded

Victimology

Who Fulcrumsec claims to have breached, from 29 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Technology10

Professional Services6

Retail & E-Commerce3

Healthcare3

Other2

Financial Services2

Manufacturing1

Education1

Top countries

United States14

United Kingdom3

India2

Mexico1

Denmark1

Singapore1

China1

Colombia1

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
EMARKETER	Technology	US	23 Oct 2026
PingCAP / TiDB Cloud	Technology	CN	19 Oct 2026
Dustin Group	Technology	SE	11 Sep 2026
Manchester Airports Group magairports.com	Transportation	GB	1 Sep 2026
Novo Nordisk novonordisk.com	Healthcare	DK	16 Jun 2026
Global Schools Foundation	Education	SG	10 Jun 2026
Arup Group arup.com	Professional Services	GB	10 May 2026
Stuf Storage stufstorage.com	Retail & E-Commerce	US	8 May 2026
Avnet avnet.com	Technology	US	1 May 2026
Lena Health lena.io	Healthcare	US	1 May 2026
Woundtech woundtech.net	Healthcare	US	1 May 2026
youX / Drive IQ youxpowered.com.au	Technology	AU	1 May 2026

All 29 Fulcrumsec 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 Fulcrumsec 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 Fulcrumsec ransomware still active?

Fulcrumsec is tracked as active. The most recent leak-site claim VULONE recorded is dated 23 October 2026. 2 victims were claimed in the last 30 days.

How many victims has Fulcrumsec claimed?

VULONE has recorded 29 leak-site victim claims attributed to Fulcrumsec since May 2026, across 13 countries and 9 sectors.

Which industries does Fulcrumsec target?

The sectors most often named on the Fulcrumsec leak site are Technology, Professional Services, Retail & E-Commerce.

Which countries are most affected by Fulcrumsec?

Most Fulcrumsec victims recorded by VULONE are located in United States, United Kingdom, India.

Where does VULONE get Fulcrumsec 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.