Skip navigation

Duo Security is now a part of Cisco

About Cisco

Kelby Ludwig

AppSec Engineer

As Senior AppSec Engineer at Duo, Kelby specializes in secure code review, web application testing, cryptography and low-friction methods of shipping secure software. Prior to Duo, Kelby worked as an AppSec Engineer at Praetorian finding vulnerabilities within software produced by Fortune 500 companies and venture-backed startups. Kelby holds a BS in Computer Science from the University of Texas at Austin.

Kelby Ludwig, AppSec Engineer