1. Brynjolfsson, E., Horton, J.J., Ozimek, A., Rock, D., Sharma, G., TuYe, H.-Y.: COVID-19 and remote work: an early look at US data, pp. 0898–2937. National Bureau of Economic Research (2020)
2. Wiggen, J.: The impact of COVID-19 on cyber crime and state-sponsored cyber activities (2020)
3. Bott, E.: How many people still run windows 7. https://www.zdnet.com/article/as-support-ends-windows-7-users-head-for-the-exits/. Accessed 28 Oct 2020
4. Gallagher, S., Brandt, A.: Facing down the myriad threats tied to COVID19 (2020). https://news.sophos.com/enus/2020/04/14/covidmalware. Accessed 28 Oct 2020
5. Dhamija, R., Tygar, J.D., Hearst, M.: Why phishing works. In: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, pp. 581–590 (2006)