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  1. Clark Brands
  2. Merchant Guidelines
  3. Security & Fraud

Security & Fraud

Merchants processing on the Clark network benefit from tools that can help reduce and identify fraud events.

  • Understanding Visa & Mastercard’s Chargeback and Fraud Monitoring Programs
  • Pre-Authorization/Bank Holds
  • Shut Off/Completion Limits (Authorization Limits)
  • Host Velocity
  • Address/ZIP Code Verification (AVS)
  • VISA Transaction Advisor (VTA)
  • Big Ticket
  • Security Labels

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