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LunaLock is a ransomware and cyber-extortion group that emerged in 2025 and is notable for pairing conventional ransomware pressure with an AI-themed extortion tactic. The group publicly claimed an intrusion against the Artists&Clients art-commission platform, asserting that it stole and encrypted data and demanding payment in exchange for decryption and deletion of exfiltrated material. In addition to threatening public disclosure of stolen information, LunaLock warned that stolen artwork and related intellectual property would be submitted for inclusion in AI training datasets, attempting to create long-term coercive pressure around unauthorized model training and loss of control over creative works. Reported victim data at risk included artwork, user personal data, communications, financial information, databases, and source code. LunaLock has also operated a leak site to publicize claims and pressure victims. Known aliases include lunalock_ransomware. Based on available reporting, LunaLock is best characterized as a financially motivated ransomware actor using data theft, encryption, and leak-site extortion, with a distinctive emphasis on exploiting fears of AI-enabled misuse of stolen intellectual property.
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LunaLock ransomware group uses a unique extortion tactic by threatening to feed stolen data to AI models.
Named as a new ransomware variant/gang emerging in 2024 and associated with victim claims posted in September 2024.
Ransomware/extortion activity targeting a digital art platform (Artists&Clients), threatening data leak plus a novel coercion angle: using stolen artwork/personal data as training data for large language models if ransom is not paid.
Ransomware/extortion activity targeting an online digital art platform (Artists&Clients). Claims to have stolen and encrypted data, demands $50K, and threatens (1) public leak on a Tor data leak site (including source code and user PII) and (2) submission of stolen artwork to AI companies to be added to LLM training datasets as an additional/extreme form of IP harm.
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Every observed MITRE ATT&CK technique, grouped by tactic.
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CVEs this actor has used in known campaigns.
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