TABLE OF CONTENTS 2 3 6 7 8 9 13 15 FOREWORD BY THE DIRECTOR OF THE NÚKIB SUMMARY OF THE 2020 REPORT ON CYBER SECURITY IN THE CZECH REPUBLIC 16 �� ransomware: a continuing increasing trend in sophisticated extortion attacks �� ransomware, ddos attacks and spear-phishing: the three most serious threats of ���� �� supply chain attacks: a threat with global impacts but next to zero occurence in the czech republic LIST OF ABBREVIATIONS 2020: CYBER SECURITY IN THE CZECH REPUBLIC IN FIGURES ABOUT THE DOCUMENT CYBER SECURITY IN 2020 FROM THE PERSPECTIVE OF CZECH INSTITUTIONS, ORGANISATIONS, AND COMPANIES CYBER INCIDENTS FROM THE PERSPECTIVE OF THE NÚKIB THREAT ACTORS IN CYBERSPACE CYBER THREATS 20 TARGETS OF CYBERATTACKS �� critical infrastructure: improved security and no serious incident �� public sector: target of ddos attacks and personalized phishing �� financial sector: the highest budgets and the absence of serious attacks �� industry & energy: more attacks but low impacts �� healthcare: a tempting ransomware attack target �� education: increasing cyberattacks �� digital services: sufficient funding and legal expertise