d4 · tools · leaks

Ransomware leak tracker.

Who ransomware groups are claiming to have breached, from two independent trackers of their leak sites. Unverified criminal claims, not confirmed breaches: an early signal to go and check, never a finding. Get alerts when something on your watch list is claimed. We do not record what you look up.

Tracking 3,933 claims across 137 groups, 277 of them in the last seven days.

Read this before you act on anything here

A listing means a criminal group has said it holds data from an organisation. It does not mean a breach happened, that the data is real, or that it is recent.

Groups fabricate. In April 2026 the group 0APT listed rival gangs as victims; the claims were invented. Removing them turned a reported 15% quarterly rise in attacks into a 6% fall.
Groups recycle. CISA has documented actors buying previously stolen data to re-extort. One study found 98 listings covering only 49 distinct victims.
Attribution is often wrong. Suppliers get listed as their customers, and shared domains get listed as the wrong organisation entirely.
It undercounts. The NCSC notes victims who pay never appear on a leak site at all.

Where two independent trackers carried the same claim we mark it 2 sources. That means two crawlers saw the same post, not that anyone verified it.

We publish the claim only. We do not link to leak sites, mirror screenshots, or carry any pointer to stolen data. If you are listed here and believe it is wrong, or you want the entry removed, tell us and we will act on it.

None of this is our research. The crawling is done by RansomLook, Ransomfeed and ransomware.live, and we are grateful for it. Please go to them for the full picture.

Claims by Redact

Organisation named	Group claiming	Claimed	Where	Sources
Holland & Knight Sector: Law Firm \| Revenue: $2B USD	Redact	2026-11-02	US, Professional Services	2 sources
Baker Donelson bakerdonelson.com Sector: Law Firm \| Data Size: 355 GB \| Files: 102,390	Redact	2026-10-19	USA, Professional Services	3 sources
ONEOK, Inc. oneok.com Sector: Oil & Gas Energy \| Revenue: $39.4B USD	Redact	2026-10-16	USA, Energy & Utilities	3 sources
Parker-Hannifin Corporation parker.com Sector: Industrial Machinery \| Revenue: $21.5B USD	Redact	2026-10-16	USA, Manufacturing	3 sources
Eversource Energy eversource.com Sector: Energy Distribution \| Revenue: $14B USD	redact	2026-10-12	USA, Energy & Utilities	3 sources
DexCom dexcom.com Sector: Medical Equipment \| Revenue: $4.97B USD	Redact	2026-10-10	USA, Healthcare	3 sources
Graybar Electric Company, Inc. graybar.com Sector: Electrical Equipment \| Revenue: $11B USD	Redact	2026-10-01	USA, Manufacturing	3 sources

Watch for your own name

Tell us what to watch for and we will email you when a group claims it. Weekly at most, only when something matches, and never the same claim twice. Double opt-in, one-click unsubscribe, and your watch list is deleted the moment you leave.

Set up an alert

Sources: RansomLook (CC BY 4.0, synced 2026-11-03 12:20 UTC), Ransomfeed (CC BY 4.0, synced 2026-11-03 12:20 UTC) and ransomware.live (PRO licence, synced 2026-11-03 12:20 UTC), each used under the licence shown and refreshed a few times a day. They crawl the groups' Tor leak sites; we never do, and we store no .onion address, magnet link or leak-site screenshot. Listings are the claims of criminals and are the sole responsibility of their authors; nothing here is verified, and nothing here is advice. This site stores no personal data about what you look up.