Research Assistant Professor
at IMDEA Networks

Prospective Students: I am always looking for motivated Ph.D., master's and undergraduate students interested in exploring the general areas of network measurements, mobile security and privacy! I invite you to get in touch with me by email. More information for Ph.D candidates available here.


I am an Assistant Research Professor at IMDEA Networks and a Research Scientist at the Networking and Security team at the International Computer Science Institute (ICSI) in Berkeley. My research falls in the area of empirical network measurements, with a recent focus on privacy and security aspects of mobile applications. In collaboration with my colleagues, I have developed user-friendly software for user empowerment and transparency such as the Netalyzr network troubleshooting tool, the Lumen Privacy monitor and AppCensus website. These tools have been used by hundreds of thousands of users and produced unique datasets which have been used for research purposes by several research institutes worldwide. To get a better picture of my research activities, I invite you to visit my publication record, my main research projects and the media impact of my work.

Research interests

Network measurements, privacy and security, online advertising and user tracking, network transparency, Internet freedom, mobile computing, usable security and consumer protection.

Short biography

Narseo Vallina-Rodriguez is an Assistant Research Professor at IMDEA Networks and a research scientist at the Networking and Security team at the International Computer Science Institute (ICSI) in Berkeley. Narseo received his degree in Telecommunications Engineering from the University of Oviedo in 2007, which he extended with a 6-month visit at the University of Cambridge to complete his degree dissertation. In 2008, Dr. Vallina-Rodriguez joined Vodafone R&D, returning to the University of Cambridge to complete his Ph.D. program under the supervision of Prof. Jon Crowcroft one year after. In July 2013, Dr. Vallina-Rodriguez joined ICSI in Berkeley (California) as a Post-Doc, becoming a Research Scientist and Principal Investigator one year after. During his doctoral studies Dr. Vallina-Rodriguez also interned in world-class industry research labs, such as Deutsche Telekom Labs in Berlin (Germany) and the scientific group at Telefonica Research (Spain). The outcome of his research has been awarded with a Qualcomm Innovation Fellowship in 2012, the best short-paper award at ACM CoNEXT'14, the best paper award at ACM HotMiddlebox'15 and a DataTransparencyLabs grant in 2016 for characterizing mobile tracking services with the Lumen Privacy Monitor. Narseo's research has been extensively covered by international media, including Wired, ArsTechnica, NPR, The Verge, ABC Australia, and RTVE (the Spanish public TV) among many others.

Check out my Twitter feed for the latest research news.

Current PhD Students

Researcher Name


Latest News

  • I'm actively looking for motivated good undergraduate and graduate students to work on mobile privacy and security!
  • We got two papers accepted for NDSS'18.
  • Our study on children Android apps has been widely covered by Spanish media.