Signals Notebook: All users can see all experiments - how do I change this

All users can see all experiments - how do I change/disable this?

 When login into Signals Notebook a regular user can see all the experiments made by all the other users, even if they don't belong to the same group and the experiments have not been shared with them. This is not the desired behavior. User should only seen things they created or were shared with them.

This can happen when the 'World Read' security policy has been enabled in the tenant by an administrator.

Solution: The tenant's administrator should disable the World Read rule from the 'Security Policy'

Steps:
1. Log in as an administrator
2. Navigate to Signals Notebook > Security Policy
3. Click 'Edit'
4. Remove or comment the 'World Read' rule
5. Click 'Save Changes'
6. In the confirmation dialog click 'Save and Apply Changes'