I'm PhD candidate at DACS group of EEMCS faculty. I have a background in Internet measurements alongside past experiences in Software Development and Design.
Expertise
Computer Science
- Directory Access Protocol
- Security Practice
- Password
- Personal Data
- Security Analysis
- Security Posture
- Configuration Data
- Query Information
Organisations
My research focuses on measurement and data analysis approaches to study the behavior and security posture of the Internet.
Publications
2026
A First Look at Deployment Strategies of Services Provisioned using Anycast (2026)[Dataset Types › Dataset]. Zenodo. Luvizotto Cesar, G., Hendriks, R., Angelov, M., Jonker, M., van Rijswijk - Deij, R. M., Zirngibl, J. & Holz, R.https://doi.org/10.5281/zenodo.20374517A First Look at Deployment Strategies of Services Provisioned using Anycast (2026)[Contribution to conference › Paper] 10th Network Traffic Measurement and Analysis Conference, TMA 2026 (Accepted/In press). Luvizotto Cesar, G., Hendriks, R., Angelov, M., Jonker, M., van Rijswijk - Deij, R. M., Zirngibl, J. & Holz, R.Longitudinal Analysis of DMARC across country code Top-Level Domains (2026)[Contribution to conference › Paper] IEEE/IFIP Network Operations and Management Symposium, NOMS 2026. Luvizotto Cesar, G., Holz, R. & Jonker, M.
2025
Longitudinal Analysis of DMARC across country code Top-Level Domains (2025)[Dataset Types › Dataset]. Zenodo. Luvizotto Cesar, G., Holz, R. & Jonker, M.https://doi.org/10.5281/zenodo.17607886Characterizing Hosting and Security Practices for Public-Facing LDAP Servers (2025)In 2025 21st International Conference on Network and Service Management (CNSM) (Accepted/In press). Luvizotto Cesar, G., Öndarö, G., Kaspereit, J., Ising, F., Schinzel, S., Jonker, M. & Holz, R.Characterizing Hosting and Security Practices for Public-Facing LDAP Servers (2025)[Dataset Types › Dataset]. Zenodo. Luvizotto Cesar, G., Öndarö, G., Kaspereit, J., Ising, F., Schinzel, S., Jonker, M. & Holz, R.https://doi.org/10.5281/zenodo.17019739
2024
LanDscAPe: Exploring LDAP Weaknesses and Data Leaks at Internet Scale (2024)In Proceedings of the 33rd USENIX Security Symposium (pp. 1225-1242). USENIX Association. Kaspereit, J., Öndarö, G., Cesar, G. L., Ebbers, S., Ising, F., Saatjohann, C., Jonker, M., Holz, R. & Schinzel, S.
Research profiles
I have a Master's Degree in Computer Science and Cybersecurity (2022) from Arizona State University (US). And a Bachelor's Degree in Computer Engineering (2014) from the University of São Paulo (BR).
Address
University of Twente
Zilverling (building no. 11), room 5110
Hallenweg 19
7522 NH Enschede
Netherlands
University of Twente
Zilverling 5110
P.O. Box 217
7500 AE Enschede
Netherlands
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