What is it that makes a Level 4 Merchant High-risk?

Mastercard has set a deadline for acquiring organisations to manage risk in their Level 4 Merchant portfolio. Mastercard’s updated Site Data Protection (SDP) Program rules expect PCI DSS compliance validation from your high-risk merchants.   Mastercard requires all acquirers to have a Level 4 risk management programme in place to meet the updated SDP requirements. […]