Japan's Financial Services Agency (FSA) has published a partial revision to its Comprehensive Supervision Guidelines for Major Banks, etc., a move reported by CoinPost. The proposed amendment would standardize cybersecurity incident report formats across 17 regulatory fields, a group that includes crypto asset exchange service providers. Under the revised regime, affected operators would file using a single common template. The draft also introduces a new “Common Format for Other Cyberattack Incidents,” which complements the existing dedicated formats for DDoS attacks and ransomware. Together, the three formats form a reporting system that distinguishes among the main incident categories. A transitional arrangement is in place: until the end of March 2027, operators that are not designated as social infrastructure providers may continue to use the old report forms rather than the new template. The FSA is inviting comments on the draft revision and will accept submissions from interested parties until September 7, 2026.
Japan's Financial Services Agency (FSA) has published a partial revision to its Comprehensive Supervision Guidelines for Major Banks, etc., standardizing how regulated entities report cybersecurity incidents.
According to CoinPost, the proposed revision covers 17 regulatory fields, including crypto asset exchange service providers. Under the new framework, affected operators file network security reports using a single common format.
The revision also introduces a new category: the “Common Format for Other Cyberattack Incidents.” It joins the existing dedicated formats for DDoS attacks and ransomware, creating a three-category reporting structure.
The change is being phased in. Operators that are not designated as social infrastructure providers may continue to use the old report forms until the end of March 2027. The agency is accepting public comments on the draft revision until September 7, 2026.
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