Security measures Electronic data processing departments 30 Computer networks 28 Computer security 22 Management 12 Prevention 11 Business enterprises 9 Data protection 9 Industries 9 Electronic commerce 8 Buildings 6 Data processing 6 Retail trade 6 Business 5 Private security services 5 Risk management 5 Security systems 5 Access control 4 Airports 4 Computers 4 Corporations 4 Crisis management 4 Internet (Computer network) 4 Safety measures 4 Terrorism 4 Wireless communication systems 4 Computer crimes 3 Freight and freightage 3 Industry 3 Information technology 3