Taiwan has announced plans to intentionally slow mobile internet speeds for the first time during its ongoing 10-day Han Kuang military exercise, which commenced Wednesday. The communications throttling will occur during two 30-minute test periods next week, affecting northern and central regions of the island, where approximately 70% of the population resides.

Authorities have stated that the deliberately reduced mobile data connections aim to simulate the conditions of a cyberattack or other major crises, testing how the public can maintain communication under such disruptions. While data-heavy services such as video calls and streaming are expected to face significant interruptions, essential communications including voice calls, SMS, and emergency services are anticipated to remain functional throughout the tests.

Defence Minister Wellington Koo emphasized before lawmakers that the exercise seeks to raise public awareness of potential network slowdowns during emergencies, highlighting the importance of preparedness for these unexpected scenarios.

The Han Kuang exercise involves more than 20,000 military personnel, including around 5,000 reservists, conducting training designed to defend Taiwan against a potential military attack or blockade by China. The drills encompass naval and coastguard operations aimed at securing critical maritime routes and escorting shipments of vital supplies. Additionally, the exercise features drone deployments and measures to counter hostile unmanned aerial vehicles.

This marks a significant development in Taiwan’s civil-military preparedness, underscoring concerns over cyber and conventional threats amid ongoing tensions with China.