Mafalda Ferreira

Junior Researcher @ INESC-ID, PhD Student @ IST

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Welcome! I’m a 4th year PhD student in Computer Science and Engineering at Instituto Superior Técnico (IST), University of Lisbon, being kindly advised by professor Nuno Santos and professor José Fragoso Santos. I am a junior researcher at INESC-ID Lisbon and member of the Distributed, Parallel and Secure Systems Group (DPSS), as part of the SysSec team.

I’m interested in Web security and privacy. My research focuses on developing systems based on static analysis techniques to identify security vulnerabilities and privacy violations in JavaScript.

Previously, I received my MSc in Computer Science and Engineering at IST in 2021, under the guidance of professor Nuno Santos. My dissertation, entitled Building GDPR-Compliant Web Applications with RuleKeeper is available in the Publications section.

I have been a teaching assistant at IST, University of Lisbon since 2019. To learn more about my teaching activities, check my Teaching section.


News

Feb 28, 2025 Joined Cogna as Research Engineering Intern during the Fall.
Sep 14, 2024 Joined Amazon Web Services as an Applied Scientist Intern during the Summer, as part of the Automated Reasoning Group.
Jul 31, 2024 I was awarded the DPSS Best PhD Student Award 2023!
Apr 9, 2024 Our paper on vulnerability detection in Node.js applications was accepted at PLDI’24!

Selected Publications

  1. PLDI
    Efficient Static Vulnerability Analysis for JavaScript with Multiversion Dependency Graphs
    Ferreira, Mafalda, Monteiro, Miguel, Brito, Tiago,  Coimbra, Miguel E. and 3 more authors
    Proc. ACM Program. Lang. Jun 2024
  2. ToR
    Study of JavaScript Static Analysis Tools for Vulnerability Detection in Node.js Packages
    Brito, TiagoFerreira, Mafalda, Monteiro, Miguel,  Lopes, Pedro and 3 more authors
    In IEEE Transactions on Reliability Jun 2023
  3. S&P
    RuleKeeper: GDPR-Aware Personal Data Compliance for Web Frameworks
    Ferreira, MafaldaBrito, TiagoSantos, José Fragoso,  and Santos, Nuno
    In Proceedings of 44th IEEE Symposium on Security and Privacy (S&P’23) May 2023
  4. CCS
    Poster: A Systems Approach to GDPR Compliance-by-Design in Web Development Stacks
    Ferreira, MafaldaBrito, TiagoSantos, José Fragoso,  and Santos, Nuno
    In Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security (CCS’22) Nov 2022

Contact


E-mail: mafalda.baptista@tecnico.ulisboa.pt


Address:
Room 501, INESC-ID
Rua Alves Redol 9
1000-029 Lisbon, Portugal