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Recent BreachesData breach tracker

Threat Actors

A directory of the ransomware crews and extortion groups behind recent data breaches — filter by name or sort by activity, then open any group for the incidents we link to it.

Groups we track

nitrogen

48 victimsLast seen Jun 3, 2026

knight

47 victimsLast seen Jan 17, 2025

crypto24

46 victimsLast seen Apr 17, 2026

Global Secret Group

46 victimsLast seen Aug 25, 2026

insomnia

46 victimsLast seen Aug 19, 2026

midas

44 victimsLast seen Apr 14, 2022

cmdorganization

43 victimsLast seen Jul 31, 2026

donutleaks

42 victimsLast seen Aug 10, 2025

blackshrantac

41 victimsLast seen Jan 16, 2026

Crpx0

41 victimsLast seen Aug 12, 2026

J

41 victimsLast seen Nov 1, 2025

blacknevas

40 victimsLast seen Aug 12, 2026

embargo

40 victimsLast seen Jun 30, 2026

darkleakmarket

39 victimsLast seen May 25, 2022

dragonransomware

39 victimsLast seen Dec 16, 2024

metaencryptor

39 victimsLast seen Aug 23, 2026

securotrop

39 victimsLast seen Aug 18, 2026

CRPxO

37 victimsLast seen Aug 2, 2026

m3rx

37 victimsLast seen Aug 14, 2026

ciphbit

36 victimsLast seen Feb 10, 2026

helldown

36 victimsLast seen Nov 6, 2024

nokoyawa

36 victimsLast seen Aug 4, 2023

arvinclub

35 victimsLast seen Oct 15, 2023

spook

35 victimsLast seen Oct 19, 2021

Dark Project

34 victimsLast seen Aug 25, 2026

No actors match that name on this page.

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Threat actor leaderboard

Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.