Security measures Computer networks 1,064 Computer security 692 Examinations 198 Engineering & Applied Sciences 160 Certification 142 Information technology 140 Cloud computing 136 Data protection 135 Electronic data processing personnel 127 Management 105 Electrical & Computer Engineering 103 Telecommunications 102 Access control 99 Internet 98 Computer crimes 90 Business enterprises 88 Penetration testing (Computer security) 77 Computer Science 73 Prevention 67 Application software 56 Computers 51 Data encryption (Computer science) 45 Development 43 Wireless communication systems 39 Standards 38 Web sites 37 Data processing 35 Mobile computing 35 Hacking 33