New Contributor


This is my first post here.Nice to meet you.


Is it possible to restrict which browsers can access Microsoft 365 with MCAS access policy?

I'd like to limit it to Edge, Chrome and Safari if possible.


I appreciate everyone's help.

※This is a translation, so it may not be natural.

best response confirmed by Hayato_Kimura (New Contributor)
You could filter on the ‘user agent tag’ in the access policy for those specific browsers, however, keep in mind its fairly easy to spoof any user agent in modern browsers so this doesn’t give you a 100% guarantee.
Thank you.

I've done some research on user agents.
There were lots of articles about user agent spoofing and compatibility as you pointed out.
This doesn't seem to make it practical to limit it with user agent tags.

Thanks to your help I can move forward.