With SMMP, Mastercard Makes Refunds as Dangerous as Chargebacks
Mastercard’s Scam Merchant Monitoring Program (SMMP) becomes enforceable on July 24, 2026 for every card-not-present merchant. Most of the coverage so far has treated it as a fraud rule. Read the mechanics closely and it is something else. SMMP is about economics while dressed up in a fraud prevention rule’s clothing, and it quietly rewrites […]



















