https://en.wikipedia.org/wiki/Social_engineering_%28security%29
https://www.itgovernance.co.uk/blog/real-life-examples-of-social-engineering-part-2/
https://www.scribd.com/document/172451706/A-Case-Study-in-Social-Engineering
https://www.social-engineer.org/social-engineering/social-engineering-infographic/
https://www.social-engineer.org/framework/attack-vectors/vishing/
http://resources.infosecinstitute.com/common-social-engineering-attacks/
https://solidmonster.files.wordpress.com/2014/01/frequency-of-different-security-attacks.png
https://digitalguardian.com/blog/2017-data-breach-report-finds-phishing-email-attacks-still-potent
http://www.verizonenterprise.com/verizon-insights-lab/dbir/2017/
https://phoenixts.com/blog/how-to-prevent-social-engineering-you-cant/
