Merill Fernando, Principal Product Manager at Microsoft Entra, shares his expertise on open-source security tools designed to enhance Azure and Entra ID security. He discusses recent developments from the Microsoft Ignite event, including FIDO2 authentication and the retirement of older TLS versions. Insights on Zero Trust principles and the new security tool, Maester, highlight the importance of collaboration in tech solutions. Merill emphasizes the urgent need for Multi-Factor Authentication across organizations to bolster security awareness and frameworks.