Dr. Almetwally M. Mostafa is currently an associate professor at the Information Systems dept., College of Computers and Information Sciences (IS/CCIS), King Saud university (KSU). He obtained his B.Sc. degree in Computers and Systems Engineering from Al-Azhar University, Egypt. He received his M.Sc. from Al-Azhar University and received his Ph.D. in Computers and Systems from a channel program between Université catholique de Louvain Belgium and Al-Azhar University. His research interests include distributed systems protocols, cloud–mobile pervasive computing, fault tolerance, and the security of information systems. Before he joined KSU, he worked for 2 years at CETIC Centre d’Excellence en Technologies de l’Information et de la Communication Belgium.