BCB and CMN Establish Additional Cyber Security Requirements
In brief On December 18, 2025, the Central Bank of Brazil (BCB) published CMN Resolution No. 5,274/2025 and BCB Resolution No. 538/2025, both amending previous rules on cybersecurity and requirements for contracting cloud processing, storage and computing services for institutions regulated by the BCB. CMN Resolution No. 5,274/2025 amends CMN Resolution No. 4,893/2021, while BCB […]
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