Jack Naglieri

Member Since 2022

Jack Naglieri

Founder & CEO


San Francisco Bay Area

Jack Naglieri is a veteran security practitioner who founded Panther to solve the challenges of security operations at scale. Jack began his career at Yahoo as an incident responder and later transitioned into a security engineer role, with the challenge of deploying security monitoring tools that could analyze data at a massive scale. In 2016, he joined Airbnb and led the development of an open-source platform called StreamAlert which became widely adopted and was a giant leap forward in the scalability and flexibility essential for modern security teams. This experience led him to create Panther in 2018 to achieve his vision of delivering the power to detect any breach, anywhere, for security teams everywhere.


  • Information Security
  • Web Application Security
  • Python


March 7th, 2023

Three approaches to prepare for the future of threat detection and response

The hurdles to a well-protected organization are real, but not insurmountable with tools made for scale, developer-oriented principles and robust capabilities for automation. 

December 14th, 2022

Detection is changing: What’s not working anymore, and where the future of security is headed

In this piece, I'll cover some of the challenges security teams face today—and how teams must evolve not only their processes but also their mindset in order to become truly modern detection providers.



Panther alleviates the pains of traditional SIEM with detections-as-code, structured security data, and extreme scalability with zero overhead.


  • Cloud Security
  • Information Security
  • Startup