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kyber

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.

How we source and review actor profiles
Motivation
ransomware
Last seen
2026-03-18
Sectors
government-defense
Status
Dormant

Activity timeline

A dated ledger of actor-claimed victims, campaigns, indicators, identity mappings, relationships, and CVE links. Each date states what it measures. For extensive leak-site histories, victim entries are limited to the 100 most recent distinct listings.

Claimed
Victim claimL3HARRIS listed by kyber

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Last observed
Indicator1 indicator cataloged

Types: onion.

Identity and attribution

Exact names and tracking identifiers resolve to this canonical profile. Rebrands, affiliations, and overlapping clusters remain separate confidence-rated relationships.

Name map

kyberCanonical Name

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