Security measures Computer networks 40 Examinations 30 Electronic data processing personnel 20 Certification 18 Computer security 18 Cloud computing 4 Information technology 4 Computer technicians 3 Computing Technology Industry Association 3 Management 3 Penetration testing (Computer security) 3 Telecommunications engineers 3 Computer software 2 Access control 1 Amazon Web Services (Firm) 1 Auditing 1 Computers 1 Data encryption (Computer science) 1 Design and construction 1 Development 1 Electronic data processing 1 Hackers 1 Hacking 1 Internet 1 Internet videos 1 Linux 1 Management information systems 1 Microsoft Corporation 1 Microsoft Windows server 1