Ransomware group profile · #311 by claimed victims
Kyber ransomware
Kyber is a recently identified ransomware group using sophisticated hybrid encryption (AES-256-CTR with X25519 and Kyber1024), operating Tor-based communication channels and employing double-extortion with free partial decryption offered to build negotiation trust, discovered through underground forum monitoring in 2025.
Victimology
Who Kyber claims to have breached, from 1 leak-site posts recorded by VULONE.
Claims per month last 12 months
Top sectors
Top countries
Latest claimed victims 1 most recent
| Victim | Sector | Country | Claimed |
|---|---|---|---|
| L3HARRIS l3harris.com | Government & Defense | US | 30 Jul 2026 |
All 1 Kyber 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.
Tactics, techniques and procedures
ATT&CK technique mapping for Kyber 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.
Frequently asked
Is Kyber ransomware still active?
How many victims has Kyber claimed?
Which industries does Kyber target?
Which countries are most affected by Kyber?
Where does VULONE get Kyber victim data?
Other ransomware groups
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Lockbit3
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ClopVictim 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 16 September 2026. Questions or corrections: [email protected].
