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DeepSeek v4.1-flash
Incidents implicated systems
Incident 17821 Report
Attackers Reportedly Used ARTEX, an AI Security-Testing Tool, to Steal Data from South Korean Financial Institutions
2026-09-27
An unidentified attacker reportedly used ARTEX, an AI-powered security-testing tool, alongside large language models to breach South Korean financial institutions and steal data. Compromised systems included a loan-broker inquiry service and an employee mobile work-support system. Researchers linked the activity to exposed attacker infrastructure and AI session histories. The attacker’s identity and the full number of affected institutions remained unconfirmed.
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Related Entities
Other entities that are related to the same incident. For example, if the developer of an incident is this entity but the deployer is another entity, they are marked as related entities.