Worked on the ossf/malicious-packages repository to enhance data integrity and security advisory governance over a two-month period. Focused on maintaining the accuracy of the Version Registry by executing a data-only cleanup to remove an invalid version entry, thereby reducing the risk of downstream errors and improving reliability for dependency checks. Additionally, addressed security advisory management by withdrawing an outdated advisory to ensure records reflected current threat intelligence. Leveraged Git, YAML, and JSON to implement traceable, version-controlled changes without modifying application code. The work emphasized disciplined data hygiene and robust governance practices, supporting safer decision-making for security teams and users.