BreachCensus

abyss-data

Active1 claimed victims

The claims below are reproduced as posted by abyss-data on its own leak site. Such claims are frequently wrong or exaggerated, and are unverified. Organisations listed here have not been confirmed to have suffered a breach.

Listed organisation? Contact [email protected].

Profile

Abyss‑Data, also known as Abyss Locker, is a ransomware operation first identified around March 2023. It conducts double extortion by exfiltrating data and encrypting systems—particularly targeting VMware ESXi virtual environments—then threatening to leak stolen data via a TOR-based leak site if ransom demands aren't met. The group’s Linux variant derives from the Babuk ransomware source code with encryption resembling HelloKitty, using ChaCha–based ciphers.

Description from RansomLook (CC BY 4.0).

Claimed victims (as posted by the group — unverified)

Victim (as posted)Claimed onSourcePress coverage
MEMSICAugust 26, 2026ransomlook—

Claim data from ransomware.live and RansomLook (CC BY 4.0).