Brazil's crypto providers are moving into a compressed compliance phase ahead of an Oct. 30 authorization application deadline set by the Central Bank, with CertiK saying independent third-party compliance and security attestations are shifting from best practice toward a requirement for market access. The Web3 security firm said it has already carried out independent external audits under Central Bank Normative Instruction No. 701. The change matters beyond Brazil because the country ranked fifth globally in crypto adoption and received $318.8 billion of on-chain asset value between June 2024 and June 2025, while stablecoins accounted for about 80% of transaction volume in crypto trades reported to the Federal Revenue Service.