About the Authors

Tiju Johnson is a seasoned senior security architect with over twenty years of experience in the security field, with nearly a decade in securing telecommunications networks. He has specialized in designing and implementing robust security frameworks for both enterprise and service provider networks and has delivered solutions that address the most complex security challenges while ensuring alignment with industry standards and regulatory requirements. His strength lies in transforming high-level security strategies into actionable implementations that enhance organizational resilience against evolving cyber threats. This book represents the culmination of his hands-on experience and industry insights gained across a decade of securing telecom networks across the globe. He is currently working as a senior security solutions architect and has been part of white paper contributions with 5G Americas.