ARTEX AI Pentesting Tool Used in Data Theft Attacks on South Korean Financial Firms

Cybersecurity researchers have revealed a targeted campaign against South Korean financial organizations that utilized an AI pen testing tool called ARTEX. The campaign, which occurred from late September to early October 2026, resulted in the theft of data from these organizations. The threat actor used ARTEX to carry out the attacks, according to CrowdStrike Intelligence. The tool was leveraged by the threat actor in this activity. The attacks were focused on South Korean financial firms. The campaign led to data exfiltration from the targeted organizations.