Security measures Computer networks 102 Computer security 54 Data protection 35 Computer crimes 20 Internet 16 Access control 14 Prevention 14 Information technology 13 Electronic commerce 11 Cloud computing 10 Management 10 Telecommunication 10 Computers 8 Privacy, Right of 8 Telecommunication systems 7 Wireless communication systems 7 Business enterprises 6 Cryptography 6 Cyberterrorism 6 Data encryption (Computer science) 6 Data processing 6 Mobile computing 6 Cyberspace 5 Internet of things 5 Investigation 5 Radio frequency identification systems 5 Aeronautics 4 Computer network protocols 4 Digital watermarking 4