Security measures Computer networks 45 Computer security 18 Data protection 12 Internet 9 Access control 8 Telecommunication 6 Computers 5 Computer crimes 4 Computer network protocols 4 Cryptography 4 Electronic commerce 4 Cyberterrorism 3 Digital watermarking 3 Information technology 3 Radio frequency identification systems 3 Telecommunication systems 3 Computer storage devices 2 Internet of things 2 Investigation 2 Sensor networks 2 Technological innovations 2 Ubiquitous computing 2 Wireless communication systems 2 Acces 1 Artificial immune systems 1 Business enterprises 1 Business intelligence 1 Computabilidade e modelos de computacao 1 Computer network resources 1