In response to a security incident on January 4, 2023, CircleCI introduced new features and tools to enhance security and assist customers in mitigating risks. These updates include an interactive CLI tool, CircleCI-Env-Inspector, for identifying stored secrets, changes to the UI and API for easier auditing, universal access to self-serve audit logs, and additional functionalities like updated_at timestamps for verifying secret rotations. Customers can now compare SSH checkout keys using SHA-256 fingerprints and access audit logs to review system activities. These measures, inspired by community feedback, aim to improve the security of CI/CD environments by promoting regular credential rotation and monitoring activity across projects. CircleCI emphasizes the importance of using these tools as part of routine security practices and offers ongoing support to its users.