A merchant portfolio is the full list of merchants a PSP, ISO, PayFac, or acquirer manages.
Portfolio level controls help detect shared risk clusters, track exposure, and stay within card network thresholds.Visa publishes merchant risk guidelines here: https://usa.visa.com/support/small-business/security-and-fraud-protection.html
Integrating these guidelines with ongoing merchant monitoring creates a more resilient operation.
Reduced manual efforts
Improved review resolution time
Increase in detected fraud
