Detection and Blocking of concurrent access to O365 Account

Conditional access offers controls based on location and other criteria.  Some of these features may require the Azure AD Premium add-on (also bundled with Enterprise Mobility + Security). 

There are Location-Based Policies for SharePoint Online and OneDrive for Business with no additional costs for E3 licences:

"Conditional access policies with SharePoint and OneDrive allow administrators define policies that provide contextual controls at the user, location, device, and app levels. These policies ensure content can only be accessed when someone is connected to the defined network, denying access outside of that boundary – whether the content is access via a browser, application, or mobile app."

Further information - https://blogs.technet.microsoft.com/wbaer/2017/02/17/conditional-access-policies-with-sharepoint-online-and-onedrive-for-business/

There are lots more options, for example for Exchange Online, which is at extra cost - https://docs.microsoft.com/en-us/intune-classic/deploy-use/restrict-access-to-exchange-online-with-microsoft-intune.  If you are new to conditional access, this is a good place to start - https://docs.microsoft.com/en-us/intune/conditional-access