Deprecated Accounts Should Be Removed From Your Subscription

Description:

User accounts that have been blocked from signing in, should be removed from your subscriptions. These accounts can be targets for attackers looking to find ways to access your data without being noticed.

Solution: 

To remove blocked user accounts:
Click a subscription from the list of subscriptions below or click 'Take action' if you are coming from a specific subscription.
The list of blocked user accounts opens.
Click 'Continue'. The Access control (IAM) page opens.
In the Access control page:
1. Click the 'Role assignments' tab.
2. Search and select the users that were in the list of blocked user accounts that require removal. You can scroll back to the left to see the list.
3. Click 'Remove'.