Is there an endpoint that can retrieve all users who are currently blocked by Brute Force Attack Protection?
At the moment there is no endpoint to get a list of users blocked by the brute force feature. There are a couple of other methods to retrieve this information though.
One way to see users who are blocked via Brute Force Protection is to search the tenant logs for type:limit_wc to filter for Brute Force blocks (Log Event Type Codes ). Note that this approach will be limited to the log retention time period for your tenant.