ViewX and WebX are not the only ways to access your system—ClearSCADA can be accessed via Third Party applications, for example, OPC clients. To help secure your system, the ClearSCADA security settings are applied to every client. When a user is restricted to having read only permissions for a point in ClearSCADA, the user will also be limited to read only permissions if the user accesses the point via OPC or any other Third Party application.
Third Party applications that do not support client security will access the system through the Guest user account and will use the access permissions of the Guest user account. (see Guest User Account).
NOTE: User Groups and user accounts are only applicable if the Security setting is enabled. You can enable Security by using the Server Configuration Tool (see Define the Default Security Settings for New User Accounts).