Justin Garrison, Deepak Prabhakara, Schalk Neethling, and a fellow Changelog Slack member discuss shifting left in security, the role of developers, the importance of tooling, authentication vs authorization, and the constant need for security. They explore the concept of shifting left in software development and security, the implications for security compliance and accessibility, trade-offs in security, continuous improvement in security, automation and documentation, proprietary vs open-source solutions for security, and the importance of prioritizing security in development.