インターネットとオンラインの安全: 日本 (2026)
Japan does not have a single DSA/OSA-style omnibus online-safety statute, but since April 2025 its amended Provider Liability Limitation Act — renamed the Information Distribution Platform Act (IDPA) — imposes mandatory takedown-procedure and transparency obligations on MIC-designated large platforms (Google, Meta, X, TikTok, LINE Yahoo and others). Youth protection remains governed by the older 2008 Youth Internet Environment Act (mobile filtering + 'best efforts' duties), while a 2026 MIC/Children & Families Agency panel is still consulting on binding age-verification and penalty rules expected around FY2027.
主要なフレームワーク
Information Distribution Platform Act (IDPA, amended Provider Liability Limitation Act, in force 1 April 2025), administered by the Ministry of Internal Affairs and Communications (MIC); supplemented by the 2008 Act on Development of an Internet Environment for Young People, with a dedicated child-safety / age-verification regime still at the proposal stage.
要点
IDPA in force since April 2025
The 2024 amendment of the Provider Liability Limitation Act, renamed the Information Distribution Platform Act, took effect on 1 April 2025. It targets rights-infringing content (defamation, privacy, portrait, copyright, trademark) rather than the full systemic-risk scope of the EU DSA.
指定された大規模プラットフォーム
By May 2025 MIC had designated nine 'large-scale specified telecommunications service providers' — including Google LLC, Meta Platforms, X Corp., TikTok and LINE Yahoo — using thresholds of ~10 million MAU or ~2 million monthly posts.
Takedown & transparency duties
Designated operators must publish complaint channels and moderation standards, decide on rights-infringement removal requests (generally within ~7 days) and notify complainants; MIC updated the guidelines in August 2026 to add examples such as impersonation investment ads and 'money-transfer crime' solicitations.
July 2026 enforcement action
MIC issued formal corrective recommendations on 24 July 2026 against X Corp., Google and other designated operators for incomplete FY2025 transparency disclosures under Article 28 of the IDPA — the first high-profile enforcement step under the new regime.
Age verification still only proposed
A MIC panel published a draft report on 2 June 2026 proposing stricter sign-up age checks (potentially via carrier/OS identity data) and feature restrictions for minors, and the Children and Families Agency is weighing operator penalties for inadequate child-safety measures — but legislation is targeted only for ~FY2027 and no social-media age-verification mandate is in force today.
Platform-liability baseline
Outside the IDPA, intermediary liability still runs through the original Provider Liability Limitation framework (notice-based 'transmission prevention measures' and sender-information disclosure for defamation/privacy harm), with no general 'duty of care' comparable to the UK Online Safety Act.
このページは便宜上翻訳されたものです。英語版が正式なものであり、法的助言ではありません。