Shield
-
What Is an Access Control Server (ACS) in 3D Secure?
The Access Control Server is the issuer-side component that decides whether to approve 3DS authentication frictionlessly or require a challenge. Understanding how ACS decisions work helps CTOs evaluate payment infrastructure and predict authorization rate impact.
-
What Is Payment Routing? A Business Guide to Smart Routing
Payment routing determines which processor handles each transaction your business accepts. This guide explains how it works, why static routing costs you money, and what dynamic routing delivers in measurable business terms.