Ministerial Letter on Local Government Cybersecurity
Overview
The Ministry of Internal Affairs and Communications will issue a ministerial letter to prefectural governors and municipal mayors nationwide to strengthen cybersecurity measures, including responses to advances in AI performance and supply-chain risk mitigation. Each local government is requested to have its top leader demonstrate strong leadership and promote further initiatives.
Key points
- A ministerial letter will be issued to the heads of local governments nationwide.
- The letter calls for stronger measures, including responses to advances in AI performance.
- Supply-chain risk mitigation is also included among the areas targeted for strengthened measures.
Overview
On August 4, 2026, the Ministry of Internal Affairs and Communications published press materials concerning the securing of cybersecurity in local governments and indicated its policy of issuing a ministerial letter.
The letter is positioned as a request to strengthen cybersecurity measures, including responses to advances in AI performance and supply-chain risk mitigation.
Impact
Prefectural governors and municipal mayors nationwide are requested to personally demonstrate strong leadership as the top leaders of their respective local governments and promote further initiatives.
Details
The request is directed to prefectural governors and municipal mayors nationwide. The Ministry of Internal Affairs and Communications provides the letter as an attached PDF and encourages stronger cybersecurity measures in local governments.
The contact office listed in the materials is the Cybersecurity Measures Office, Resident Systems Division, Local Administration Bureau, Ministry of Internal Affairs and Communications. The listed representatives are Senior Specialist Yonei, Section Chief Nishimoto, and Principal Officer Yamamoto.
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