To unenroll from identity theft monitoring in Microsoft Defender, go to your Defender dashboard and select Dark web monitoring or Credit monitoring (if set up), select the ellipsis icon , and then select Remove all your info.
Removing the account will delete all the information you have provided to identity theft monitoring. However, your breach and credit data with Experian are unaffected with this removal.
Note: Removing the account for dark web monitoring also removes credit monitoring and vice versa.