BLUE FLAG

Digital Agency updates My Number information-sharing documents

Original title:マイナンバー制度における制度解説の情報連携に係る資料を更新しました

What happened

The Digital Agency updated its My Number explainer page, including the lists of administrative procedures eligible for information sharing and omittable documents (dated 2026-10-19). This is a routine reference update, not a vulnerability or incident.

Who is affected

  • Businesses handling My Number data
  • Providers of government-procedure services

What to do

If you explain My Number-related document exemptions to users, check the updated list PDFs. Also confirm individual procedures with the relevant local government or agency.

About this policy

Jurisdiction
Japan · デジタル庁
Who it applies to
Firms handling My Number or guiding government procedures
Guidance
Why this flag

制度解説資料の更新であり、期限や義務の新設は記載がなく、情報提供の位置づけのため。

Blue flag: be aware — Policy, research, industry trends and guides that need no immediate technical action.

Sources