Taiwan's Ministry of National Defense

Taiwan's Ministry of National Defense serves as the primary governmental body responsible for the defense and security of Taiwan. Its core mandate encompasses safeguarding territorial integrity, managing military forces, and formulating defense policy. The ministry operates within the complex geopolitical context of Taiwan's status, facing persistent security challenges primarily stemming from cross-strait tensions with China. Its operations are central to maintaining Taiwan's security posture amidst ongoing regional disputes.

The ministry experienced a significant cybersecurity incident on August 3, 2022, coinciding with heightened military activities near Taiwan following a high-profile U.S. official's visit that drew strong objections from China. Its network was temporarily disabled for approximately two hours due to a distributed denial-of-service (DDoS) attack. This incident occurred simultaneously with disruptions affecting other key Taiwanese government websites, including the presidential office and Foreign Affairs Ministry, experiencing traffic surges reaching 8.5 million requests per minute. Analysis indicated the attack traffic originated primarily from IP addresses located in China and Russia. Concurrently, defacement attacks targeted public information screens at transportation hubs and government facilities, displaying messages condemning the U.S. visit. Chinese authorities explicitly linked both the cyber incidents and the heightened military maneuvers to their opposition to the visit and Taiwan's political status.