Objectives: Aiming to reduce distributed denial-of-service (DDoS) attacks by alerting the consciences of Internet users, this paper evaluates the effectiveness of four warning banners displayed as online ads (deterrent—control, social, informative, and reorienting) and the contents of their two linked landing pages. Methods: We implement a 4 x 2 quasi-experimental design on a self-selected sample of Internet users to measure the engagement generated by the ads and the pages. Engagement is measured on the ads as the ratio of clicks to impressions, and on the pages as percentage of page scrolled, average session duration, video interaction rate, and URLs click rate. Results: Social ads generate significantly more engagement than the rest with low to medium effect sizes. Data reveal no differences in engagement between both landing page designs. Conclusions: Social messages may be a better alternative for engaging with potential cyber offenders than the traditional deterrent messages. Correspondence: Netherlands Institute for the Study of Crime and Law Enforcement (NSCR), De Boelelaan 1077, 1081 HV, Amsterdam, The Netherlands. Email: AMoneva@nscr.n This is a post-peer-review, pre-copyedit version of an article published in Journal of Experimental Criminology. The final authenticated version is available online at: https://link.springer.com/article/10.1007/s11292-022-09504-2
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Tijdens deze door studenten gegeven seminar kwamen de volgende onderwerpen aan bod: DDoS, Clickjacking, Social engineering, SQL injectie, XSS, Brute forcing en Man in the middle.
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The outbreak of the COVID-19 virus in December 2019 and the restrictive measures that were implemented to slow down the spread of the virus have had a significant impact on our way of life. The sudden shift from offline to online activities and work may have resulted in new cybersecurity risks. The present study therefore examined changes in the prevalence, nature and impact of cybercrime among Dutch citizens and SME owners, during the pandemic. Qualitative interviews with ten experts working at various public and private organizations in the Netherlands that have insights into cybercrime victimization and data from victim surveys administrated in 2019 and 2021 were analyzed. The results show that there was only a small, non-statistically significant increase in the prevalence of cybercrime during the pandemic among citizens and SME owners. Nevertheless, the COVID-19 pandemic did have an impact on the modus operandi of cybercriminals: victims indicated that a considerable proportion of the offenses was related to the COVID-19 pandemic, particularly in the case of online fraud. Moreover, the use of new applications and programs for work was associated with an increased risk of cybercrime victimization during the COVID-19 crisis. These results suggest that increases in rates of registered cybercrime that were found in previous studies might be the consequence of a reporting effect and that cybercriminals adapt their modus operandi to current societal developments.
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