Worked on the InsightSoftwareConsortium/ITK repository to enhance the robustness and security of medical image processing by addressing a critical bug in DICOM file parsing. Using C++ and leveraging expertise in software security and bug fixing, backported a safety improvement from GDCM that introduced bounds checking before accessing DICOM byte values. This change mitigated the risk of out-of-bounds reads when handling malformed files, reducing potential crash and vulnerability scenarios in healthcare workflows. The update was implemented through a targeted commit, validated against existing test suites, and maintained module stability without impacting performance, demonstrating disciplined engineering and cross-repository collaboration practices.