JAPAN Law and Practice Contributed by: Hiromi Hayashi, Daisuke Tsuta, Masaki Yukawa and Keiichi Bando, Mori Hamada & Matsumoto
regulatory responsibility in this context. The MIC has the authority to issue guidance to service providers that fail to comply with the TBA. If such guidance is not followed, the MIC also has the power to issue business improvement orders. In recent years, there have been instances where the MIC has taken enforcement actions against social media service providers. For example, in cases where unauthorised access resulted in the leakage of user information, including the confidentiality of communications, the MIC has demanded that the service providers ensure the protection of communication confidentiality and strengthen cybersecurity measures.
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