Mastercard has become a Charter-level member of the Blockchain Security Standards Council (BSSC), joining forces with Coinbase, Fireblocks, and others to shape security frameworks for blockchain networks and tokenized assets. Announced on April 21, 2026, Mastercard will participate in working groups focused on security and privacy guidelines, contributing its extensive payments experience to the council's efforts. The BSSC, a nonprofit consortium, develops audit frameworks and security standards for digital asset ecosystems. Mastercard's involvement underscores the growing importance of unified security practices in facilitating institutional adoption of blockchain technology. Claire Le Gal, who leads Integrity and Standards at Mastercard's Security Solutions unit, will represent the company on the BSSC board, bringing expertise in fraud prevention and cyber resilience. Mastercard's participation in the BSSC highlights the increasing recognition of blockchain as critical infrastructure by traditional finance. The company's commitment to developing shared security rules aims to address fragmented practices that hinder institutional capital flow into digital asset markets. This move signals a significant step towards integrating blockchain technology into mainstream financial systems.