Security warnings are intended to alert users about the possibility of events that may compromise their protection. They encounter security warnings on daily basis in many situations when dealing with their computer. However, prior studies have shown that users often have difficulty in understanding the warnings, which can pose a particular risk in cases where they are required to make a decision. Well gathered information is needed to help the researchers and other people to further understand

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... this area. This paper describes an overview of studies on security warnings. It covers problems that end users encounter with security warnings, possible solutions and approaches of security warnings and useful classification of security warnings studies. It is expected that this paper will benefit the academicians, research community or general public to understand the problems and possible solutions in improving security warnings.