Tomáš Masný currently holds the position of CISO in the companies Slovak Telekom and T-Mobile CZ, which are part of the Deutsche Telekom group. He has been working in the field of security since 2005, and he has been working in telco for 16 years. During his career, he worked as an expert in the consulting sphere in Europe for energy, gas, banks, and state administration customers. In the telco environment, he held the positions of expert, project manager up to manager. He implemented many innovative, transformational changes in the merger of telco companies, while the main mission was to ensure the security of customers and assets of the enterprise environment. Family, bees and nature are his relaxation when he is not in the defensive line.