Stock exchanges. Insider trading in securities 16 Investment, capital formation, speculation 15 Food security 10 Intrusion detection systems (Computer security). Computer network security. Hackers 9 Malaysia 7 Network security 7 Security 7 Cryptography 6 Digital storage 6 Securities. Fixed-income securities 5 Authentication 4 Bonds 4 Cloud computing 4 Cyber security 4 Data privacy 4 Encryption 4 Information security 4 Information systems 4 Information technology 4 Privacy 4 Security and privacy 4 Security of data 4 Trust 4 human 4 security 4 Article 3 Big data 3 Computer networks. General works. Traffic monitoring 3 Economic security 3 Food supply 3