Default permissions

Default permissions (READ, WRITE, or NONE) are defined by the administrator for the full database with the ability to set a default for cube access with dimension access control and a separate setting for default permissions for multidimensional access control. There is no ability to set different default settings for different cubes and dimensions. Default permissions are defined using d/EPM Administration.
Caution: 
If you change the configuration, the permission default is interpreted differently. For example, in a case where the default permission is changed from NONE to READ, users will be able to see elements without explicit permissions set that were previously hidden to them.

Once the default permission is changed, you must verify the permissions are set correctly under the new configuration.