December 2025 performance summary focused on security-focused feature expansions and threat intelligence maintenance across two core repositories. In uAssets, expanded the badware filter list with seven commits addressing multiple malicious domains, significantly strengthening end-user protection. In polkadot-js/phishing, expanded the phishing domain deny list with seven commits adding numerous phishing domains and updating all.json, improving defense against newly identified phishing sites. Demonstrated cross-repo collaboration (co-authored contributions) and data fidelity through regular list maintenance. Overall impact: reduced user exposure to malware and phishing, improved threat intelligence coverage, and reinforced secure-by-default data practices.