“People are the weakest link in the security chain” – Bruce Schneier [3]
Many aspects of our lives rely on the Internet and computers, including communications, transportation, government, finance, medicine and education. To use these applications user needs a friendly interface which should allow him/her to access the information in a faster and easy way. Those people can be your average user working with a desktop or laptop computer, but they can also be people on the move using mobile devices, like, smart phones, and tablets, or even people using sensors, like, a fit bit to measure how they interact with the world. From the people perspective, we want to understand both the psychological and cognitive abilities of users. To do so we should design a system in which there will be very few instructions and user should be able to find features they need quite quickly. This allows us to build technology that takes advantage of people's inherent abilities and also that avoid excessive demands to do things that they're not cognitively capable of, or that are difficult.
The main aim of the paper is to identify the process of designing secure systems, and how designers can ensure that security mechanisms are usable and effective in practice. The research perspective is to determine how one can design usable security systems.