It's a 'Speed Reduction Drill,' Not a Network Outage: National Security Source Says It's to Cope with Natural Disasters, Cyberattacks, and Complex Disasters

Taiwan is set to conduct a significant drill in August simulating a "mobile network obstruction" scenario, which will involve reduced internet bandwidth, limiting services to voice calls and text messages. This exercise is part of the "2026 Urban Resilience Air Defense Exercise" and is designed to test preparedness for critical situations.

National security officials stated that the drill is intended to address three primary scenarios: natural disasters, large-scale cyberattacks, and complex, multi-faceted disasters. The goal is to allow the public to experience such a situation with minimal disruption and to develop contingency plans. This initiative is presented as part of a "global trend," with many like-minded democratic allies having conducted similar drills to bolster their resilience against communication disruptions.

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This action network speed reduction drill is similar to exercises conducted by many democratic allies with similar ideas; it can be said to be a 'global trend,' and Taiwan is not the first to do it.

The article details international precedents, noting that numerous countries have practiced responses to communication disruptions. Examples include the UK's regular national cybersecurity drills simulating communication outages and attacks on critical infrastructure, and exercises by NATO members like Estonia, Finland, Norway, Sweden, and Russia in response to evolving security landscapes. Asian nations such as Singapore, South Korea, and Japan also conduct regular cybersecurity and infrastructure resilience drills, often simulating attacks on government, financial, and telecommunications systems.

Taiwan's digital diplomacy association chairman, Kuo Chia-yu, emphasized that the war in Ukraine has demonstrated the tangible impact of communication disruptions, affecting everything from air raid alerts and family contact to financial transactions and rescue coordination. He encouraged the public to participate in the drill by attempting to contact family via text instead of messaging apps and checking offline data accessibility on their phones, highlighting the importance of personal preparedness in building societal resilience.

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The Ukraine war has already proven that communication disruption is not an abstract hypothesis. After power, base stations, and telecommunications facilities are destroyed, it affects not only internet access, but also air raid alerts, family contact, financial payments, news verification, and rescue coordination.