Security Measurements of Internet Website Zone for IE9 Based on Fuzzy Logic

Abstract

Internet security zones are an Internet Explorer (IE) features that allow users to access websites based on their level of trust. Internet explorer assigns all websites to one of four security zones, in which, each zone has some settings that specifies its standard security level. IE categorizes the security to five levels represented by linguistic variables (Low/ Medium-Low/ Medium/ Medium-High/ High). Combination between different standard individual setting, or changing the standard setting will produce a custom level of security with undefined value. Indicating a scaled numeric value to the security level of Internet website zones gives a valuable sense to the users even when these levels are customized. The main contribution of this paper is to put forward a method to measure the security of IE9's Internet website zone for standard and customized security levels. This method is based on fuzzy logic system. The designed system considers two boundary limits to the security level. These two limits are considered to be within the interval [20-90] of a total scale of 100 units. It is found that the evaluated output of the fuzzy inference system (FIS) for different individual settings is proportional to the degree of the required security level