Dr. G. Athithan received his B.E. (Hons) in Electronics and Communications from the Coimbatore Institute of Technology, Tamil Nādu in 1981. He received his Ph.D. in Physics from the Indian Institute of Technology, Mumbai in 1997. After a stint of seven years in the Department of Atomic Energy (DAE), he joined the Defence Research and Development Organisation (DRDO) in 1988. His work in DAE was on computer graphics, computer-aided design, and modelling of quasicrystal structures. Later, in DRDO, he contributed to the development of parallel computing, scientific data visualisation, and information security solutions. He was a ‘Distinguished Scientist’ and a Director General of DRDO at the time of retirement in 2018. Post retirement, from August 2019 to August 2023, he was with the Centre for Artificial Intelligence and Robotics, Bengaluru as a DRDO Chair. His research interests are artificial intelligence, data mining, and cyber security. He has co-authored two books, one on outlier detection during 2019 and another on cyber security during 2022. He has published around twenty-nine papers in archived journals and around thirty papers in conference proceedings. From March 2024, he is affiliated with the National Institute of Advanced Studies as an Adjunct Professor.