1. South Korean nuclear operator hacked amid cyber-attack fearshttps://www.theguardian.com/world/2014/dec/22/south-korea-nuclear-power-cyber-attack-hack
2. A cyber attack in Saudi Arabia failed to cause carnage, but the next attempt could be deadlyhttps://www.independent.co.uk/news/long_reads/cyber-warfare-saudi-arabia-petrochemical-security-america-a8258636.html
3. Critical Infrastructure Cyber Security Solutionshttps://www.huntsmansecurity.com/industries/critical-infrastructure/
4. Cybersecurity of critical infrastructure;Viganò,2020