1. Lloyds 2015 Center for Risk Studies, University of Cambridge www.lloyds.com
2. Fireeye 2017 Fireeye Inc. Cyber Threat Map https://www.fireeye.com/cyber-map/threat-map.html
3. C. Cerrudu 2015 “An Emerging US (and World) Threat: Cities Wide Open to Cyber Attacks https://securingsmartcities.org/wp-content/uploads/2015/05/CitiesWideOpenToCyberAttacks.pdf
4. DoE 2009 U.S. Department of Energy Office of Electricity Delivery and Energy Reliability http://www.inl.gov/scada/publications/d/securing_the_smart_grid_current _issues.pdf
5. DoE 2012 U.S. Department of Energy Office, Electricity Subsector Cybersecurity Risk Management Process http://energy.gov/oe/downloads/cybersecurity-risk-management-process-rmp-guideline-final-may-2012