Payment system: organization, payment instruments, domestic and international payments, financial exchange network (TARGET, SWIFT), electronic payment system. Payment cards: types, payment cards associations, standards. Magnetic card: standards, structure, content, use, PIN codes, attacks on the card. Smart Cards: structure, types, standards, organization, modules, file system, keys, communication with card, Java smart card, attacks on the card. EVM standard: purpose, organization, smart card file system, data representation, EMV transactions. Crypto currency: origin, types, technologies, blockchain, consensus, distribution, transactions, mining, security.Online payments: general features, 3D Secure. Mobile payments: mobile payment systems, payment models, mobile EMV standard. Digital currency: general features, types and cryptocurrency technology. Fraud in electronic payment systems: online scams, evolution of fraud management and prevention of fraud, techniques for the fraud prevention.