Security Usability

1. looking the barn door after the horse is gone!
 => don't understand the associated risks !!

2. Why security fails
 - Security is a secondary task to the user
 - Users have various backgrounds e.g. skill, language, culture
 - Users have little knowledge about security

3. Security usability
 - A set of guidelines focusing on the usability and security to ensure a system is secure and usable
 - For best usability, a system should be easy to learn / efficient to use / easy to remember / less error prone/likable
 - For security, a system should assure of integrity / availability / authentication / authorisation / confidentiality

https://gds.blog.gov.uk/2014/02/10/striking-a-balance-between-security-and-usability/

https://www.coursera.org/learn/usable-security