The use of GitOps enhances application security by implementing four core principles: declarative description, version control, automated change approvals, and continuous reconciliation. These principles position GitOps to have a significant impact on application security, enabling features such as rapid replication and setup, incident response capability, strong cryptography for tracking changes, software agents that raise alerts for discrepancies, automated change approvals, swift responses to security breaches, and management of security measures as code. By implementing security as code, developers can shift left with their security measures, position security as a priority, identify modifications to required states, and create security policies before they're enforced in the Git version control system. Additionally, GitOps enables compliance as code by codifying compliance policies declaratively for policy management and enforcement, simplifying the use of CI/CD tools to automate policy testing. Overall, GitOps offers major advantages in security automation in configuration and CI/CD processes.