According to ChainCatcher, hackers breached the Financial Security Institute’s (FSI) information protection assessment system in South Korea. The incident exposed about 300 financial-sector employees’ names and birth dates, along with roughly 350 masked contact details, according to the report. FSI disconnected the system and notified financial regulators. It said no financial consumers’ personal credit information or sensitive details about national financial infrastructure were affected. South Korean financial authorities ordered a comprehensive security review, including reassessments of licensed institutions’ API interfaces and data-exchange channels, amid heightened concern over cybersecurity in mid-November.