1. Alshathry, S. (2017). Cyber Attack on Saudi Aramco. International Journal of Management and Information Technology, Vol. 11, Issue 5.
2. Australian Government. Australian Cyber Security Centre (ACSC). (n.d.). Available at: https://www.cyber.gov.au/node/933.
3. Bing, C. (2018). Trisis has the security world spooked, stumped and searching for answers. CIBERSCOOP. https://www.cyberscoop.com/trisis-ics-malware-saudi-arabia/.
4. Centre for the Protection of National Infrastructure. (2021). Critical National Infrastructure. Available at: https://www.cpni.gov.uk/critical-national-infrastructure-0.
5. Cyberint Research. (2020). Targeted Ransomware Attacks in Taiwan. Available at: https://blog.cyberint.com/targeted-ransomware-attacks-in-taiwan.