1. Department of Electronics Engineering, Sudan University of Science and Technology, Khartoum, Sudan
2. Department of Electrical and Electronics Engineering, Red Sea University, Port Sudan, Sudan
3. Center for Cyber Security, Faculty of Information Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
4. Department of Computer Engineering, College of Computers and Information Technology, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
5. Department of Computer Science, Institute of Computer Science and Digital Innovation, UCSI University Malaysia, 56000 Kuala Lumpur, Malaysia
6. Schools of IT and Telecommunication Engineering, Melbourne Institute of Technology, Melbourne, Australia