The National Diplomatic Academy data breach has raised significant cybersecurity concerns in South Korea after the Ministry of Foreign Affairs confirmed that hackers maintained access to the academy's online education system for nearly 10 months. The cyberattack resulted in the exposure of personal information belonging to current and former ministry employees, including diplomats serving overseas. 

According to the Ministry of Foreign Affairs, the attackers exploited a vulnerability in the National Diplomatic Academy's online education platform in April 2025. The compromise remained active until February 2026, allowing unauthorized access to data linked to thousands of individuals before t...