Example Concept: Implementing a zero trust model for CI/CD pipelines involves enforcing strict identity verification and access controls at every stage of the pipeline. This includes using multi-factor authentication (MFA) for all users, ensuring that all code repositories and build environments are protected by network segmentation and firewalls, and continuously monitoring for unauthorized access attempts through logging and alerting mechanisms. Additionally, secrets management tools should be used to securely store and manage credentials and API keys.