Clause 6 provides guidance to vendors that implement OPC UA Applications. Since many of the countermeasures required to address the threats described above fall outside the scope of the OPC 10000, the advice in Clause 6 suggests how some of those countermeasures should be provided.

For each of the following areas, Clause 6 defines the problem space, identifies consequences if appropriate countermeasures are not implemented and recommends best practices.