Book excerpt: This book constitutes selected and revised papers from the First International Conference on Cybersecurity in Emerging Digital Era, ICCEDE 2020, held in Greater Noida, India, in October 2020. Due to the COVID-19 pandemic the conference was held online. The 9 full papers and 2 short papers presented in this volume were thoroughly reviewed and selected from 193 submissions. The papers are organized in topical sections on cyber security issues and challenges in emerging digital era; security resilience in contemporary applications.