Which of the following testing techniques uses both defensive and offensive testing methodologies with developers to securely build key applications and software?

Yellow teaming is a collaborative security testing approach that integrates both offensive (red team) and defensive (blue team) methodologies throughout the software development lifecycle. It involves developers working closely with security testers to build secure applications from the ground up, identifying and remediating vulnerabilities early. This contrasts with red teaming (purely offensive, adversarial simulation), blue teaming (purely defensive, incident response), and green teaming (focused on environmental or compliance aspects, not a standard security testing team color). Yellow teaming emphasizes proactive security integration and knowledge sharing.