Office 365 user photos questions

Hi Experts,

In a hybrid environment, currently setting photos in local AD.
Users have the ability through OWA and other office 365 apps to set their own photo.

Is there a way to report on any user who may have changed their picture through O365?  

Can this setting be locked down so a user won't have the ability to customize their photo?

I found this article which explains it partially:

Ron ShortsAsked:
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Sajid Shaik MSystem AdminCommented:
the  Quest ActiveRoles Management Shell for Active Directory; it's free and useful module for PowerShell giving you a lot of "already-made" command-lets to interact with AD.

as well you can use the following powershell command

Get-QADUser -IncludedProperties "thumbnailPhoto" | Where-Object {$_.thumbnailPhoto -eq $null}

all the best
Ron ShortsAuthor Commented:
re-phrased my question Sajid, thank you
Vasil Michev (MVP)Commented:
You can disable the OWA settings, but that only covers half the story anyway - users will still be able to set photos in SharePoint or Delve, etc. In other words, the photo handling in O365 is crappy, and there is no "100%" solution. Take a look at this utility (and read the FAQ for a detailed explanation on how syncing photos works across O365):
Ron ShortsAuthor Commented:
Thanks Vasil, not a lot of options.... so other than exporting each of the thumbnails from the tenant and comparing size for example, there is not way to grab a query of all of the thumbnails in the tenant by attrib properties to tell if they are original photo's set on prem is my understanding.  Is that correct?
Vasil Michev (MVP)Commented:
The thumbnail is only used when you sync the photo. If users set it via any of the Exchange endpoints, you can use the Get-UserPhoto cmdlet, and you can block them from adding photos by editing the OWA policy. But they still will be able to set it in other locations.

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