Access control Security measures Computers 19 Computer networks 16 Computer security 10 Telecommunication 7 Electronic data processing departments 6 Prevention 3 Computer crimes 2 Computer simulation 2 Confidential communications 2 Data processing 2 Records 2 Virtual computer systems 2 Auditing 1 Biometric identification 1 Business enterprises 1 Consumer protection 1 Data protection 1 Database security 1 Digital computer simulation 1 Digital subscriber lines 1 Electronic commerce 1 Electronic data processing 1 Electronic information resources 1 Equipment and supplies 1 Evaluation 1 Fault tolerance (Engineering) 1 Human-computer interaction 1 Information retrieval 1