Payment giant Mastercard praised Ripple's RLUSD stablecoin at the XRP Ledger Hackathon in New York. According to XRPL community member Lost Art on X, Mastercard representatives acknowledged the Ripple-issued stablecoin while explaining partner pitch requirements. Mastercard was one of the official partners for the two-day hackathon, held from October 24-25, immediately preceding Ripple's Swell conference.