1. Kumar, A., Chaudhary, M., Kumar, N.: Social engineering threats and awareness: a survey. Eur. J. Adv. Eng. Technol. 2, 15–19 (2015)
2. Kelly, R.: Almost 90% of cyber attacks are caused by human error or behavior. ChiefExecutive. Net (2017)
3. Bada, M., Sasse, A., Nurse, J.: Cyber security awareness campaigns: why do they fail to change behaviour? arXiv Preprint arXiv:1901.02672 (2019)
4. Deterding, S., Dixon, D., Khaled, R., Nacke, L.: From game design elements to gamefulness: defining “gamification”. In: Proceedings of the 15th International Academic MindTrek Conference: Envisioning Future Media Environments, pp. 9–15 (2011)
5. Hamari, J., Koivisto, J., Sarsa, H.: Does gamification work?–a literature review of empirical studies on gamification. In: 2014 47th Hawaii International Conference on System Sciences, pp. 3025–3034 (2014)