Personal information belonging to roughly 25,000 Shinhan Bank customers, including names, phone numbers, annual income figures and loan details, was compromised in a hacking attack on October 1, 2026. Investigators believe the attackers, suspected to be operating overseas, used advanced artificial intelligence tools to probe for vulnerabilities, with experts suggesting the bank was likely caught in an opportunistic AI-powered sweep rather than specifically targeted. South Korea’s Financial Supervisory Service has launched an on-site investigation expected to take several months, while Shinhan Bank has blocked external IP addresses and suspended affected services as containment measures.
