Hello @jpcapone,
Thank you for posting your query on Microsoft Q&A.
I understand that you've followed the recommended actions for the Secure Score item "Restrict anonymous users from joining meetings" by logging into the Microsoft Teams admin center, navigating to Meetings > Meeting Settings, and toggling the “Anonymous users can join a meeting” option to Off under the Participants section.
However, it seems the Secure Score has not yet been updated to reflect these changes.
Please note that the Last Sync column does not always reflect daily updates from all workloads. Some workloads only send data when there is a change in the score or at specific intervals. For Microsoft Teams, the data typically syncs once a month, and the recommendation state is refreshed during this monthly sync.
Since you made these changes in late July, I recommend waiting another week to see if the Secure Score recommendation state updates accordingly.
https://learn.microsoft.com/en-us/defender-xdr/microsoft-secure-score#how-it-works
I hope this information is helpful. Please feel free to reach out if you have any further questions.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Thanks,
Raja Pothuraju.