Shinhan, Kookmin, Hana data breaches fuel concerns over AI-powered cyberattacks in financial sector

A series of data breaches at three of Korea's largest commercial banks has raised concerns over the rising threat of AI-powered cyberattacks in the financial sector. KB Kookmin Bank disclosed that personal information of 119 customers was leaked after unauthorized access to a mobile system used by employees. The leaked data included names, phone numbers, addresses, and resident registration numbers, all encrypted.

Following the breach, Kookmin Bank activated an emergency response system to review their processes and prevent further damage. Later that day, Hana Bank reported that personal information of 89 customers was exposed due to a hacking attempt on its sales support system. The leaked information included resident registration numbers, names, addresses, email addresses, phone numbers, and workplace details.