Security measures Computer networks 83 Computer security 56 Access control 22 Data protection 20 Data encryption (Computer science) 15 Computers 14 Dissertations 13 Cryptography 12 Dissertations, Academic 12 Mobile computing 11 Electronic commerce 9 Information technology 9 Internet 8 Wireless communication systems 8 Cloud computing 7 Intrusion detection systems (Computer security) 7 Mobile communication systems 7 Cell phones 6 Computer network protocols 6 Medical records 6 Passwords 6 Public key infrastructure (Computer security) 6 Quantum communication 6 Civil service 5 Data processing 5 Information storage and retrieval systems 5 Internet of things 5 Prevention 5 Quantum theory 5