Design and Usability Evaluation of User-Friendly Security Tools 


Vol. 14,  No. 12, pp. 1065-1072, Dec.  2025
10.3745/TKIPS.2025.14.12.1065


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  Abstract

With the rapid proliferation of Internet of Things (IoT) devices, convenience in daily life has increased, but so have various security threats. However, most existing security tools are designed for experts, making them difficult for general users to understand and utilize. This study aims to design and develop a user-friendly IoT security interface, “Jikeobom,” that enables non-expert users to easily engage in protective actions, and to empirically verify its effectiveness. Screenshots of existing tools (e.g., Windows Defender, Nmap) and the proposed interface were presented to participants, who evaluated perceived usability (PU), actionability (AC), trust (TR), intention to use (IU), and cognitive load (CL). A total of 34 non-expert participants took part in the study. The results showed that the proposed interface achieved significantly higher scores than conventional tools in PU, AC, and IU (p < .001, d > 1.2). TR also showed a moderate level of improvement (d = 0.56), while CL showed no significant difference. Qualitative feedback indicated that intuitive explanations and guidance messages reduced hesitation and encouraged immediate protective behaviors. These results empirically demonstrate that usability-centered design of security interfaces can promote adoption and protective behavior among non-expert users, providing practical implications for the design of user-friendly security interfaces in IoT environments.

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[IEEE Style]

J. H. Lee, Y. J. Lee, M. S. Yang, S. Kim, "Design and Usability Evaluation of User-Friendly Security Tools," The Transactions of the Korea Information Processing Society, vol. 14, no. 12, pp. 1065-1072, 2025. DOI: 10.3745/TKIPS.2025.14.12.1065.

[ACM Style]

Ju Hye Lee, Yoo Jin Lee, Mi So Yang, and Sungwook Kim. 2025. Design and Usability Evaluation of User-Friendly Security Tools. The Transactions of the Korea Information Processing Society, 14, 12, (2025), 1065-1072. DOI: 10.3745/TKIPS.2025.14.12.1065.

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