This case study details the City of Southgate's implementation of passwordless authentication using YubiKeys to enhance cybersecurity for its municipal operations. The document outlines the increasing cyber threats faced by local governments, including phishing and ransomware attacks, which prompted the city to elevate its cybersecurity measures. The city council approved the deployment of YubiKeys following a cyber attack in 2023, which highlighted vulnerabilities in their existing systems. The case study describes the integration of YubiKeys with Microsoft Entra certificate-based authentication to achieve compliance with federal standards and improve overall security posture. It emphasizes the importance of multi-factor authentication (MFA) in safeguarding critical infrastructure and citizen data. The document also notes the positive reception from city staff regarding the transition to passwordless authentication, which has reduced support calls related to password issues and improved user experience. Overall, the case study presents a proactive approach to cybersecurity in the public sector.