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 by the security policy is displayed. Where a Restricted security policy is set, the list of all users who are allowed access by the security policy are displayed. To find a user in the list, enter a name in the Locate user field. To search or browse for all users and check if they are in the list, select the security icon. 

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