Merill Fernando is the creator of Maester, the open-source Microsoft cloud security testing framework, and a former Microsoft Principal Product Manager for Microsoft Entra.
He helps identity and security teams strengthen their Microsoft cloud environments through practical tooling, community education, and deep experience with Microsoft Graph, PowerShell, DevOps, and security operations.
Merill is also the author of Entra.News, the popular weekly newsletter covering Microsoft Entra, and creator of Entra.Chat, a weekly podcast on Entra. In addition to Maester, he has built community projects including cmd.ms, idPowerToys, and Graph X-Ray, and regularly shares identity insights on LinkedIn, X, and YouTube.