Sergey is the inventor of the AB Handshake Call Validation technology and a global expert in fraud management and revenue assurance. He has over 20 years of experience in the telecom industry in sales, R&D, and operations and holds an MS in Electrical Engineering. Under Sergey’s guidance AB Handshake developed Call Validation – an instant virtual 'handshake' between operators that stops fraud in real time with 100% accuracy. Coupled with AI Shield, a machine learning-powered tool, AB Handshake provides comprehensive protection from all fraudulent scenarios for all network types.