Chargeback Optimizer is a prevention chargeback and fraud management solution designed to protect consumers from fraud transactions conducted using payment cards by both merchants and individuals. It analyses transactions for compliance with the requirements of international payment system rules and helps card acquirers and merchants to prevent possible losses while payments. The software assesses transactions at the time of their conduction based on the requirements for each specific type of merchant and operation to evaluate possibilities for disputes and fraud prevention. Automatization of the process allows to decide on the return of funds before the client’s request, which reduces the time spent on the analysis and review of the case. Developed infrastructure is based on existing international payment system rules and requirements.