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

Cybersecurity researchers have disclosed details of a targeted campaign aimed at South Korean financial organizations that used an artificial intelligence (AI) pen testing tool named ARTEX to carry out the attacks.

The activity , per CrowdStrike Intelligence, was active from late September to early October 2026, and resulted in data exfiltration from various South Korea-based financial firms , including Shinhan Bank and Yegaram Savings Bank.