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June 4, 2025 62 mins

David Kosorok, the Director of Information Security Programs at Toast, Inc., has over 25 years of experience in software and security testing - including more than 16 years dedicated to security. He’s led and scaled product security programs across organizations of all sizes, making him a trusted voice in the appsec space. 

In this episode of The Security Champion’s Podcast, David joined Dustin Lehr to share key insights from his new book ‘Mastering Application Security.’ They dive into what it takes to build a high-performing appsec team, from aligning talent with mission to prioritizing the right initiatives in your appsec program. 

Resources: 

BOOK - Mastering Application Security: Building Elite Teams for Tomorrow's Threats: https://www.amazon.com/Mastering-Application-Security-Building-Tomorrows-ebook/dp/B0F512GC8Y/ref=tmm_kin_swatch_0

Security Champions Field Guide: https://info.securityjourney.com/tactical-appsec-field-guide

The Security Champion Program Success Guide: https://securitychampionsuccessguide.org/

Follow David on LinkedIn: https://www.linkedin.com/in/kosorok/

Follow Dustin on LinkedIn: https://www.linkedin.com/in/dustinlehr/

Subscribe to Dustin's YouTube channel: https://www.youtube.com/@UCjYquhHrc1GR9nySDNpJtRA

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Podcast sponsored by Security Journey, Secure Coding Training for Developers and Everyone in the SDLC. Learn more at securityjourney.com.

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