Headshot of Nektarios Leontiadis
Headshot of Nektarios Leontiadis


Nektarios Leontiadis

Research Scientist

I am a Security Engineering Manager on the Integrity, Investigations, and Intelligence team in Washington, D.C. I support a distributed team of highly skilled engineers who work on systems and infrastructure that provide a range of capabilities for Security Investigations.

I joined the company in 2014 as a Threat Research Scientist working on providing a better understanding of the threat ecosystem targeting Facebook users. This understanding involved building and refining signals of compromise, as well as evaluating Facebook’s user remediation systems. I also worked on investigating threats targeting our platform and our users, in an effort to understand the underlying mechanics and economics of the illicit activities.

I hold a PhD in Engineering and Public Policy from Carnegie Mellon University. During my tenure at CMU I worked on empirical measurements and economic modeling of online crime, towards understanding and structuring effective countermeasures. The title of my PhD thesis is Structuring Disincentives for Online Criminals.


Security economics, measurements, online crime, threat intelligence