- Cryptology 7
- Coding and Information Theory 5
- Computer Communication Networks 5
- Systems and Data Security 4
- Computing Milieux 3
- Information Systems Applications (incl. Internet) 3
- Management of Computing and Information Systems 2
- Computer Systems Organization and Communication Networks 1
- Computers and Society 1
- Data Mining and Knowledge Discovery 1
- Mathematics of Computing 1
- Software Engineering 1