Forum Discussion
Restrict O365 from adding a cloud storage service from another organisations tenant
Hi everyone,
To prevent the potential for data exfiltration through a linked but separate cloud service (see picture) Is it possible to prevent users from my organization from adding a cloud service storage (one drive from another organization
0365 tenant assuming they have the necessary credentials to add the service??
If this has been asked somewhere my apologies
2 Replies
Kalcite Hello Basil. Yes, it's possible to block third-party storage providers as well as B2B OneDrive sync. There are a couple of options available. See links for more information.
Use Group Policy to control OneDrive sync settings
https://docs.microsoft.com/en-us/onedrive/use-group-policy
Policy Setting to Prevent B2B Sync
https://docs.microsoft.com/en-us/onedrive/b2b-sync#policy-setting-to-prevent-b2b-sync
B2B Sync
https://docs.microsoft.com/en-us/onedrive/b2b-sync
OwaMailboxPolicy (AdditionalStorageProvidersAvailable)
https://docs.microsoft.com/en-us/powershell/module/exchange/client-access/set-owamailboxpolicy?view=exchange-ps
*edit* (noticed this is available from the M365 admin portal as well)
You can also block third-party in Teams.
- Thanks for the response... much appreciated! .. will look into the resources provided
