EMS stands for Enterprise Mobility + Security. The individual products that make up this bundle are Microsoft Intune, Azure Active Directory Premium and Azure Rights Management. Through the integration with Office 365, EMS enables organisations to manage users and data more efficiently than ever before.
Microsoft Intune allows IT Administrators to manage applications and data on mobile devices for all of the employees in an organisation through the cloud. In practice, this means that if mobile devices are distributed across a workforce they can all be managed by a single Administrator. Microsoft Intune has broad compatibility, covering iOS, Android, Windows 10, Windows 8.1 and Windows RT.
Azure Active Directory Premium is another offering within EMS. The software syncs and shares with Office 365, meaning that if you have a login for Office 365 then it will also work for Azure AD Premium. It has wide-ranging capability, including single sign on, self-service password reset and multi-factor authentication to name just a few. This is the key product within the bundle that makes Office 365 and EMS so compatible.