Clarify who is the merchant of record, program manager, and licensed entity. Define KYC, KYB, and AML ownership, including watchlists, sanctions, and enhanced due diligence. Document obligations in runbooks with training and audits. Observe local nuances like source-of-funds proofs and politically exposed persons. Shared accountability fails unless one named owner knows exactly what must happen daily.
Design consent that is informed, granular, and revocable. Minimize data, encrypt at rest and in transit, rotate keys regularly, and log purpose-limited access. Map residency constraints, especially for identity artifacts and transaction metadata. Build subject access workflows early. Breaches cost trust exponentially; transparent handling, rapid notification, and genuine remediation define whether customers stay and recommend you.
Treat fraud as a product: invest in signals, labeling, and feedback loops that continuously adapt. Balance friction with safety using dynamic limits and authentication. Build dispute tooling with clear evidence collection and timely submissions. Run chaos drills for provider outages, card network issues, and batch failures. Measured responses protect revenue while keeping honest customers delighted and loyal.
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