Library staff require essential software to operate, including email, document storage, intranet(s), document and user collaboration, and more. Microsoft 365 is a cloud-based platform that provides productivity and collaboration tools including email using Exchange, SharePoint, OneDrive, Teams, Yammer, and the Microsoft Office Suite of Word, Excel, PowerPoint and Access. Microsoft 365 Defender is a unified pre- and post-breach enterprise defense suite that natively coordinates detection, prevention, investigation, and response across endpoints, identities, email, and applications to provide integrated protection against sophisticated attacks.