Computer Communication Networks 35 Computer networks  Cryptography 30 Cryptology 30 Data encryption (Computer science) 30 Data and Information Security 26 Data protection 26 meer ... Electronic data processing—Management 24 IT Operations 24 Computers and Society 20 Computers and civilization 20 Algorithms 18 Application software 7 Computer and Information Systems Applications 7 Operating Systems 7 Operating systems (Computers) 7 Computers, Special purpose 5 Special Purpose and Application-Based Systems 5 Computer networks—Security measures 4 Computer science—Mathematics 4 Discrete Mathematics in Computer Science 4 Discrete mathematics 4 Mobile and Network Security 4 Software Engineering 4 Software engineering 4 Information theory 3 Coding and Information Theory 2 Coding theory 2 Computer Application in Social and Behavioral Sciences 2 Computer science 2 minder ...