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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

Ranstreet

1 victimLast seen Dec 21, 2023

Reynolds

1 victimLast seen Nov 13, 2025

Roadsweep

1 victimLast seen Jul 18, 2022

Robinhood

1 victimLast seen Dec 6, 2021

Ronggolawe

1 victimLast seen Feb 1, 2021

SafePay Ransomware

1 victimLast seen Oct 19, 2026

Securotop

1 victimLast seen Aug 18, 2026

Sicarii

1 victimLast seen Jan 5, 2026

Slug

1 victimLast seen Jan 17, 2023

Synack

1 victimLast seen Mar 21, 2021

Thanos

1 victimLast seen Jul 1, 2020

Walocker

1 victimLast seen Jun 10, 2025

Zeppelin

1 victimLast seen May 19, 2021

Zerotolerance

1 victimLast seen May 5, 2024

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.