Worked on the containerd/containerd repository to enhance security in backend systems by implementing a feature that redacts sensitive query parameters from CRI error logs. This update addressed the risk of sensitive data exposure in production environments, supporting compliance with data privacy standards. The solution involved adding sanitization logic to the error handling and logging components, ensuring that potentially confidential information is not written to logs. Utilizing Go for backend development, the work focused on improving the reliability and safety of log management within the Container Runtime Interface. The change delivered a targeted privacy improvement without introducing new bugs or regressions.