Mastercard introduced Stablecoin Security on Oct. 19, 2026, to help financial institutions assess fraud, scams, sanctions exposure and other financial-crime risks before stablecoin payments settle. The platform-agnostic API combines payment intelligence with blockchain analytics, examining transaction context, fund origins, restricted-party exposure and potential scam indicators. Its risk scores are intended to help banks and payment providers investigate suspicious activity before settlement. Borderless.xyz and Keyrails, participants in Mastercard’s Start Path Blockchain and Digital Assets program, are joining the initial cross-border payments rollout. Borderless.xyz connects financial institutions with licensed stablecoin providers across more than 113 countries and 72 currencies; Keyrails focuses on high-value international trade payments, particularly in emerging markets. The launch was unveiled at Money20/20 USA in Las Vegas. The initial rollout is focused on North America, with worldwide commercial availability targeted for 2027 and BVNK supporting the expansion. Mastercard cited research examining 593 million stablecoin transfer events across 141 million Ethereum transactions in 2025. Nearly 60% involved complex, multistep activity rather than direct transfers between two parties, making it harder for institutions to trace funds and assess the full transaction path. The company illustrated the service with a payment from a Boston coffee shop to a Brazilian supplier, whose stablecoin proceeds are converted into local currency. The launch extends Mastercard’s stablecoin strategy, which includes its Global Money Platform with BVNK, acquired in August for $1.8 billion. Earlier initiatives include a permissioned blockchain network, Crypto Source, Mastercard Crypto Credential and expanded stablecoin settlement capabilities. Mastercard has also secured a New York BitLicense covering stablecoins and tokenized deposits, moved to enable AI-agent payments alongside Coinbase and Ripple, and expanded settlement to Circle’s USDC and Ripple’s RLUSD. Earlier topic information said Mastercard found crypto transaction fraud rates were four times higher than those for non-crypto transactions. Stablecoin supply growth has slowed this year even as transaction volumes have risen, partly on remittance and cross-border payment activity; Standard Chartered has projected a $2 trillion stablecoin market by 2030, two years later than its earlier forecast.