Forum Discussion
Teams Client and Defender for Cloud Apps
Hi Folks, I'm evaluating the following Policy in MCAS: Block upload based on real-time content inspection Here the details of the policy: User Name equals "UPN" App equals "Microsoft Online Se...
The goal is not to whitelist/blacklist applications but rather to block the upload of certain File Types only.
Today the only possibility you have to achieve it is the use Defender for Cloud Apps (as per Microsoft statement - not mine 
).
However the available Apps in the Defender suite only includes "Microsoft Online Services" which is indented for web-based use and it is working fine actually (no issue with that)
However, Microsoft Teams client is left behind or not considered by the Defender PG.
Teams client is interacting with other workloads like SharePoint/OneDrive using the same web-based API so I'm expecting the MCAS policies to be honored in the same way.
Spoiler
From a security standpoint, I found this behavior a bit strange no ?
How can I guarantee that MCAS policies are honored also in Microsoft Teams client (fat client) ?
How can I guarantee that MCAS policies are honored also in Microsoft Teams client (fat client) ?
Yoann_David_Mallet
Microsoft
MicrosoftWhile I am not an expect with Teams, if your request is specifically for teams, i would recommend you look into the Teams DLP functionalities. Most policies do apply to both the web and thick client.