An ACS (Access Control Server) is a crucial technology within the 3D Secure (3DS) ecosystem, specifically residing in the Issuer Domain (the cardholder's issuing bank). Its primary function is to act as the "brain" behind the cardholder's authentication experience during an online credit or debit card transaction.

Building and certifying your own ACS can take over a year and cost upwards of €100,000. Verestro ACS provides a ready-to-use, fully certified solution that eliminates these barriers - offering rapid deployment, reduced costs, and full compliance.

Contact us: www.verestro.com