Cyber security or information technology security are the techniques of protecting computers, networks, programs and data from unauthorized access or attacks that are aimed for exploitation
http://www.pbs.org/wgbh/nova/labs/lab/cyber/1/1/
https://www.khanacademy.org/partner-content/nova/cybersecurity/cyber/e/cybersecurity-101-quiz
https://www.khanacademy.org/computing/computer-science/internet-intro/internet-works-intro/v/the-internet-cybersecurity-and-crime
http://blog.cybertraining365.com/2017/03/24/big-cyber-threats-breakdown-types-cyber-attacks/
https://www.csoonline.com/article/2616316/data-protection/the-5-types-of-cyber-attack-youre-most-likely-to-face.html
https://www.dhs.gov/topic/cybersecurity