When iManage Security Policy Manager is managing the security for a client or matter, a security icon is displayed in the attributes column. Select the icon to view security policy details. 

If an Open security policy is set, the list of all users who are excluded from access per the security policy is displayed. Where a Restricted security policy is set, the list of all users who are allowed access per the security policy is displayed.  

Enter a name in the Locate user field to find a user in the list. To Search or Browse all users and check if they are in the list, select the icon.

For more information on this type of security policy in IRM, refer to iManage Security Policy Manager Administration Guide.