1. Sano, A., Sawaya, Y., Yamada, A., Kubota, A.: SeBeST: security behavior stage model and its application to OS update. In: Proceedings of the 35th International Conference on Advanced Information Networking and Applications, AINA, vol.2, pp. 552–566 (2021)
2. Ministry of Internal Affairs and Communications: WHITE PAPER information and Communications in Japan. https://www.soumu.go.jp/johotsusintokei/whitepaper/eng/WP2021/chapter-3.pdf. Accessed 17 May 2023
3. United Nations Development Programme: Bridge the digital divide. https://www.undp.org/digital/standards/2-bridge-digital-divide. Accessed 17 May 2023
4. IEEE: Solutions to the digital divide moving toward a more equitable future. https://ctu.ieee.org/solutions-to-the-digital-divide-moving-toward-a-more-equitable-future/. Accessed 17 May 2023
5. NTT Docomo: Safety and Security for Children; https://www.docomo.ne.jp/english/corporate/csr/safety/. Accessed 07 June 2023