Raphael is a PhD candidate at the University of Twente in collaboration with the Dutch Police. He has a background in engineering and computer science with a focus on cyber-security. At the moment his research focuses on underground forums investigating how users disclose contact details and crime involvement.
Publications :
Hoheisel, R., Van Capelleveen, G., Sarmah, D. K., & Junger, M. (2023). The development of phishing during the COVID-19 pandemic: An analysis of over 1100 targeted domains. Computers & Security, 128, 103158.
Meurs, T., Cartwright, E., Cartwright, A., Junger, M., Hoheisel, R., Tews, E., … (2023). Ransomware economics: A two-step approach to model ransom paid. 2023 APWG Symposium on Electronic Crime Research (eCrime), 1–13.
Meurs, T., Hoheisel, R., Junger, M., Abhishta, A., & McCoy, D. (2024). What to do against ransomware? Evaluating law enforcement interventions. 2024 APWG Symposium on Electronic Crime Research (eCrime), 76–93.
Hoheisel, R., Meurs, T., Junger, M., Tews, E., & Abhishta, A. (2025). Dark Web Dialogues: Analyzing communication platform choices of underground forum users. Symposium on Electronic Crime Research (eCrime 2024).
Hoheisel, R., Van Capelleveen, G., Sarmah, D., & Junger, M. (2025). The shift and surge of phishing during the COVID-19 pandemic: An analysis of over 1100 targeted top-level domains used by Dutch firms. SSRN. https://ssrn.com/abstract=4215129
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