Microsoft 365 is a subscription family of cloud and desktop services that can include Exchange Online, Teams, SharePoint, OneDrive and Office applications, depending on the licence. Security, compliance, storage and management capabilities vary by plan and configuration; they should not be assumed from the product name. Microsoft operates the service platform, while the customer remains responsible for identities, permissions, devices, data governance, sharing and many retention or recovery choices. Adoption should define tenant ownership, administrative roles, MFA, guest access, data locations, lifecycle and exit. Native retention or recycle features are not automatically equivalent to an independent backup requirement. Licensing, configuration, monitoring and user behaviour determine the operational result more than simply moving email or files into the suite.
IT glossary
Microsoft 365
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