Mastercard unveiled a new tool that enables banks and payment providers to assess the risk of stablecoin transactions before they are executed. The service, called Stablecoin Security, was announced on Monday at the Money20/20 USA conference in Las Vegas. It combines traditional payment data with blockchain analytics to detect fraud, scams, sanctions exposure and other financial crime risks. Initial partners include Borderless.xyz and Keyrails, with global commercial availability slated for next year. Banks already employ fraud detection systems for conventional payments; the added complexity of stablecoins — where funds can traverse multiple wallets and blockchains — makes comprehensive risk assessment more difficult. Stablecoin Security can generate a risk score prior to payment completion, allowing institutions to flag transactions that may require further scrutiny. The launch follows Mastercard’s $1.8 billion acquisition of BVNK in August and its recent rollout of a Global Money Platform aimed at bringing stablecoin payments to businesses. It also comes amid a slowdown in the growth of digital dollar supply, even as transaction volumes have risen, driven partly by remittances and cross‑border payments. A Standard Chartered report projects the stablecoin market could reach $2 trillion by 2030, two years later than an earlier forecast. The move reflects broader industry efforts to address regulatory and security concerns as stablecoin usage expands.