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Jack Naglieri

Founder & CEOPanther

San Francisco Bay Area

Member Since November 2022


Information Security
Web Application Security


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.

Published content

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. 

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.

Company details


Company bio

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



Area of focus

Cloud Security
Information Security

Company size

51 - 200