The 2020 IEEE International Symposium on Sustainable Energy, Signal Processing & Cyber Security (IEEE iSSSC 2020), technically co-sponsored by IEEE Kolkata Section, is being organized by the Department of Electrical & Electronics Engineering, GIET University, Gunupur, Odisha, India from December 16-17, 2020. The inaugural edition of this conference invites papers that report latest research and novel applications of IoT, AI/ML, and Big Data to the fields of sustainable energy, signal processing, and cyber security.