Japan Active Cyber Defense Act: Registration and incident reporting duties start
Tech · Compliance deadlines · Thu, October 1, 2026 · Japan
Main provisions take effect, including Chapter 2 duties for special social infrastructure operators to register important computers and report specified intrusion incidents. Not legal advice.
Every year
| Date | Event | When |
|---|---|---|
| Fri, May 23, 2025 | Japan Active Cyber Defense Act: Act promulgated | 16 mo ago |
| Wed, Apr 1, 2026 | Japan Active Cyber Defense Act: Supervisory Commission provisions in force | 6 mo ago |
| Thu, Oct 1, 2026 | Japan Active Cyber Defense Act: Registration and incident reporting duties start | in 4 days |
| Mon, Nov 22, 2027 | Japan Active Cyber Defense Act: Communications data measures in force (latest date) | in 14 mo |
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Source, method and history
- Source
- Regulations
- How we know
- From the Regulations API (regulations.fru.dev), which cites the official text.
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- one-off
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- Changes
- 2026-09-27: added to 2026-10-01