About Me

I am currently a second year Ph.D. student in the Computer & Information Sciences & Engineering (CISE) Department at the University of Florida. I work at the Florida Institute for CyberSecurity (FICS) lab where I am advised by Patrick Traynor. Previously, I earned my Bachelor's degree in Computer Engineering from Florida International University in 2015.

My current research interests include telephony security, data protection, and threat classifications of hospital networks.


  • February, 2017 - AuthentiCall received the Distinguished Poster Award at NDSS 2017.
  • June, 2016 - I was awarded the Board of Education Fellowship for summer research.
  • March, 2016 - I decided to continue my education as a Ph.D. student at the University of Florida.
  • December, 2015 - I have graduated from Florida International University with a Bachelors of Science in Computer Engineering.


B. Reaves, L. Blue, H. Abdullah, L. Vargas, P. Traynor, and T. Shrimpton. AuthentiCall: Efficient Identity and Content Authentication for Phone Calls. In Proceedings of the 26th USENIX Security Symposium (SECURITY), 2017. (Acceptance Rate: 16.2%).

A. Pons, A. Rosa, S. Vidaurre, L. Vargas, and E. Pons. Security and Privacy Implications of 'Do Not Track'. International Journal of Information Privacy, Security and Integrity, 3(2):117–133, 2017.

The Guy Behind the Keyboard

Outside of my research, I am an outdoor enthusiast looking for the next adventure.

Scuba Diving
Growing up in Florida, I always had the beach no more than a 45-minute drive. This led me to experience a wide range different aquatic activities. However, out of all my experiences, scuba diving has been my favorite. I am currently in the process of obtaining my advanced scuba diving open water certificate!

Though Florida is not known for the its beautiful mountains (that is what we call our few small hills), I do enjoy biking around the few trails we have in the state parks.

Contact Me

lfvargas14 'at' ufl 'dot' edu (business)
lvarg025 'at' gmail 'dot' com (personal)
Curriculum Vitae