www.soumu.go.jp/main_sosiki/cybersecurity/kokumin/security/business/admin/16

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https://www.soumu.go.jp/main_sosiki/cybersecurity/kokumin/security/business/admin/16

About this page

This page outlines the incident response framework for information security incidents. It describes a five-step process: incident detection, initial response, analysis, recovery, and prevention of recurrence. The page emphasizes that accurate information communication is critical to minimizing damage. While advance procedures should be established, actual incidents often require management judgment on decisions like business suspension duration or ransomware payment. Early coordination with security agencies and stakeholders is recommended to prevent similar attacks.