Summary
The primary function of a cybersecurity Green Team is to act as a bridge between the developers (Yellow Team) and the defenders (Blue Team), integrating security practices throughout the entire Software Development Life Cycle (SDLC).
Essentially, the Green Team acts as DevSecOps engineers whose primary mission is to ensure that applications are deployed securely and their entire lifecycle is fortified against threats.
OnAir Post: Yellow Team
About
Source: Gemini AI Overview – 11/6/2025
Key functions of the Yellow Team include:
- Secure Development: Integrating security principles and secure coding practices throughout the entire Software Development Lifecycle (SDLC), from initial design to deployment.
- Building Systems: Designing and building software, applications, and infrastructure that are resilient to cyber threats.
- Vulnerability Remediation: Receiving feedback and reports on vulnerabilities discovered by the Red Team (attackers) and Blue Team (defenders), and then developing and implementing patches and fixes to address these weaknesses.
- Code and Application Testing: Conducting internal application and code testing, including using static and dynamic analysis tools, to identify security flaws early in the development process.
- Collaboration: Working closely with the Blue Team to ensure systems are manageable and defendable (forming the Green Team function), and collaborating with the Red Team to learn about attack methods and embed a security-first mindset in development (forming the Orange Team function).
- Proactive Security: Shifting the security paradigm from a reactive approach (fixing issues after a breach) to a proactive one (building security in from the start).

