South Korean banks boost cybersecurity spending following data leaks

South Korea's five largest commercial banks are increasing their information security investments after a series of customer data leaks, AzerNews and UA.NEWS reported on Friday. AzerNews reported that the five major banks allocated a combined total of approximately 332 billion won to information security this year, marking a 3.8 percent increase compared to the previous year. [1][2]

The investments come after public reporting revealed that recent breaches exposed personal data belonging to at least 68,000 people across at least seven financial institutions, Recorded Future reported. According to Recorded Future's Insikt Group, a group known as TAG-217 used the AI-driven ARTEX framework to target South Korean financial institutions, assembling attack tools as early as August 2026. [1][3]

As FTMQ Security reported earlier, a Chinese-speaking hacker previously used the ARTEX AI penetration testing suite alongside Claude agents to compromise South Korean financial entities, including Shinhan Bank, KB Kookmin Bank, and Hana Bank. Those incidents exposed personal client details and credit card information, causing temporary system outages. [11]

Financial institutions are taking steps to enhance their security infrastructure as banking services become increasingly digitalized, according to AzerNews. South Korea, officially known as the Republic of Korea, has a population of about 52 million people. [1][10]