Mr. Ratajczak for over 10 years is professionally involved in ensuring the security and quality of information systems in the PZU Group. He carried out a number of projects related to information and IT security. A graduate of Polish-Japanese Institute of Information Technology and Master of Business Administration at Warsaw University of Technology Business School. He is a holder of a number of certificates in the field of information security like CISM (Certified Information Security Manager) and CISSP (Certified Information Systems Security Professional).