Evaluating Security Support Tool for Help Recipients
摘要
To protect users from various cyber-attacks, users take security actions by themselves. Some computer and smartphone users, referred to as “Help Recipients,” delegate necessary security actions to their family or friends, referred to as “Helpers”. However, Helpers are not always able to be close to Help Recipients. Help Recipients cannot always delegate security actions to Helpers. Therefore, it is important to support Help Recipients in taking security actions by themselves. Our previous work found that there are two reasons why Help Recipients cannot take security actions by themselves. First, many users cannot choose appropriate security actions. It is difficult for them to distinguish appropriate security actions from a large amount of information. Second, they cannot understand technical terms. In this paper, we propose a security support tool for Help Recipients to solve these problems. This tool selects the appropriate method and security system based on the services and applications being used, and provides only the minimum necessary information. Help Recipients do not need to search many websites and only need to confirm the information described in the security support tool. To evaluate the effectiveness of this tool, we developed a prototype and conducted a user experiment. After the experiment, many users would like to use this prototype; however, there is room for improvement in terms of adjusting the amount of information.