Currently Working @
(Last updated on 2019-07-17.)

I am a researcher and PhD candidate in the Economics of Cybersecurity group headed by Prof. Michel van Eeten at Delft University of Technology. Together with Prof. van Eeten and my colleagues, we examine problems in the cross section of economics, Internet security, privacy and policy. My main research is on developing security reputation metrics with a more specific focus on hosting providers. In short it is about understanding the factors that drive the (in)security of the hosting market and to develop methods by which the levels of (in)security can be externally measured from data. To this aim, I draw techniques and tools from several fields including economics of information security, computer science, Internet measurements, data analytics and social science to examine the complex problem of criminal abuse of hosting providers and ways to mitigate and deal with the problem. I have coauthored several research papers on this topic, a summary of which you can find in my publication list below. I closely collaborate with my colleagues Dr. Maciej Korczynski and Samaneh Tajalizadehkhoob on research areas related to my main line of research. Please refer to TU-Delft's webpages for a broader overview of the related security and privacy research conducted at TU-Delft.

In the past I have been involved in research in game theoretical analysis and design aspects of P2P systems and have also collaborated in research on Agent-based Simulations and AI. In addition to scientific research, I have also gained several years of experience as a professional software developer in multiple small and medium sized companies.

Feel free to contact me if you would like to know more about my research or have questions about my publications. TU-Delft BSc/MSc students looking for a graduation project in my area of research can drop by my office for a conversation or contacted me via e-mail.

My Research

Peer Reviewed Publications

Other platforms


Research & Project Related News, Interviews and Other Online Resources

PhD Position at EconSec
(Data analytics for the security of the Internet-of-Things)
Our research group, Econsec, is looking for a PhD candidates to join our group and research IoT Security. For a more detailed description of this position please visit the following
DCSRA 2018
(Best Paper Nomination)
Our CCS paper titled "Herding Vulnerable Cats: A Statistical Approach to Disentangle Joint Responsibility for Web Security in Shared Hosting" was nominated along with 4 other paper for the best Dutch cybersecurity research paper in 2018. Congratulations to all my coauthors and especially Samaneh.

Involved In

  • MINIONS - Mitigating IOT-based DDoS attacks via the DNS
  • REMEDI3S - Reputation Metrics Design to Improve Intermediary Incentives for Security - PhD Research
  • REMEDI3S-TLD - Reputation Metrics Design to Improve Intermediary Incentives for Security of TLDs
  • Clean Netherlands (Nederland Schoon) - Collaboration with Dutch Law Enforcement, Public Prosecutor and Market Authority to Measure Online Abuse of Dutch Hosting Provider Industry

Code, Datasets and Community Contributions

During my work as a researcher and I have contributed to several software projects in the form of code or bug fixes. I have contributed to projects such as pyasn and organizations such as Stopbadware. Some of these projects might come in handy for other researchers, sysadmins and network operations personnel.

During my research I have also helped develop and maintain several datasets that relate to my research which usually involves large scale Internet measurements. These datasets are actively used by our group as the basis of some of our scientific publications and could be beneficial to others. We also make use of other proprietary datasets which researchers might be interested in knowing about.

Below you will find a selection of some of the software projects and datasets that I regularly use for my research. If you are interested in knowing more about them, how they could be useful to you and how to use them contact me directly and I could help you up or put you in touch the with relevant contact person(s).

Historical ASN Lookup
VirusTotal Private API Implementation
Retrieve Blacklisting information from Clearing House
ISP Dataset
Worldwide Dataset of Major ISPs
Hosting Dataset
Worldwide Dataset of Hosting Providers


Research & Programming Skills
Data Analysis with Python and R
Large-Scale Internet Measurements
ML, Stats and Empirical Research
2014 - Current
PhD Candidate
TU-Delft, Delft, The Netherlands
2012 - 2014
TU-Delft, Delft, The Netherlands
2010 - 2012
Software Developer
TOPdesk, Delft, The Netherlands
2008 - 2009
Software Developer
West Consulting BV, Delft, The Netherlands
2014 - Current
PhD Candidate
TU-Delft, Delft, The Netherlands
2006 - 2010
MSc Computer Science
TU-Delft, Delft, The Netherlands
2001 - 2006
BSc Computer Science
University of Tehran, Tehran, Iran
Hobbies & Interests
  • Bouldering
  • Music & Piano
  • Contemporary Art

Teaching and Supervision

Teaching, Lectures and Talks
Economics of Security - (MSc DelftX - WM0824)
Course Assistant
Faculty of TPM, TU-Delft, Delft, The Netherlands
International Grand Challenges - (MSc - EPA1101)
Guest Lectures
Faculty of TPM, TU-Delft, Delft, The Netherlands
(Sept. -- Jan.)
Artificial Intelligence Techniques (MSc – IN4010)
Lectures and Tutorials
Faculty of EECMS, TU-Delft, Delft, The Netherlands
2012 - 2014
Introduction to Artificial Intelligence
Guest Lectures
De Haagse Hogeschool, Den Haag, The Netherlands

TU-Delft BSc/MSc students interested in economics of information security, privacy and their policy issues can contact me for further inqueries and exploring options for their graduation work in one of these research areas . Please note that this type of research typically involves 'data analytics' and having some programming experience specially with Python is really helpful.

Supervised Theses
Jan Koenders
(Daily Supervisor)
Faculty of TPM, TU-Delft, Delft, The Netherlands
MSc Thesis Title
The DDoS plague from a Law enforcement view - A data analytical approach to getting a deeper insight into DDoS reporting
Ryan Cheung
(Daily Supervisor)
Faculty of TPM, TU-Delft, Delft, The Netherlands
MSc Thesis Title
Targeting financial organisations with DDoS: a multi-sided perspective
Contact Information

Other platforms