Ng contributed to the defi-wonderland/handbook repository by designing and documenting a Technical Design Security Review Process. This work embedded mandatory security considerations directly into the technical design phase, aiming to identify architectural risks earlier and reduce downstream rework. Ng focused on process improvement and security review, using Markdown to create clear, actionable documentation that clarified the security review workflow for cross-functional teams. The updated process strengthened governance and facilitated collaboration between product, design, and security stakeholders. While the contribution was limited to one feature over a month, the work demonstrated depth in documentation and thoughtful integration of security best practices.