During January 2026, Bezerra enhanced authentication security in the ClipboardHealth/core-utils repository by implementing a JWT ID (JTI) on all generated tokens. This backend feature, developed in TypeScript, addressed the risk of refresh loops and replay attacks by ensuring each token is uniquely identifiable and resistant to duplication. Bezerra focused on secure token design and API development, integrating security best practices throughout the process. The work improved the reliability of token management, reduced authentication flow outages, and aligned with the organization’s security roadmap. No major bugs were addressed, as the month’s efforts centered on operational stability and security hardening.