1. National Initiative for Cybersecurity Careers and Studies Explore terms: a glossary of common cybersecurity terminology https://niccs.us-cert.gov https://niccs.us-cert.gov/glossary
2. Health Information Trust Alliance Healthcare's model approach to critical infrastructure cybersecurity 2014 https://hitrustalliance.net
3. 2014 http://www.kpmg.com
4. Cabinet Office Cost of cyber crime study 2011 https://www.gov.uk
5. PWC 2015 Information security breaches survey https://www.gov.uk/government