Nektarios Leontiadis

Research Scientist

I am a Threat Research Scientist on the Threat Intelligence team in Washington, D.C. Since joining Facebook in 2014, I have been studying the various threats targeting users across the Facebook Family of Apps, and coming up with impactful ways to protect them using novel techniques.

I hold a PhD in engineering and public policy from Carnegie Mellon University, and my thesis was on online crime modeling and prevention.


Security economics, measurements, online crime, threat intelligence

Latest Publications

Following Their Footsteps: Characterizing Account Automation Abuse and Defenses

Louis F. DeKoven, Trevor Pottinger, Stefan Savage, Geoffrey M. Voelker, Nektarios Leontiadis

IMC 2018 - October 31, 2018

Malicious Browser Extensions at Scale: Bridging the Observability Gap between Web Site and Browser

Louis F. DeKoven, Stefan Savage, Geoffrey M. Voelker, Nektarios Leontiadis

USENIX 2017 - August 14, 2017

Measuring and Mitigating OAuth Access Token Abuse by Collusion Networks

Shehroze Farooqi, Fareed Zafar, Nektarios Leontiadis, Zubair Shafq

IMC 2017 - November 1, 2017