What effect do global sources have in extrascope rules?

In the context of Illumio Policy Management, global sources play a crucial role in defining the behavior and reach of policy rules. When we focus on the effect of global sources in extrascope rules, the correct understanding is that scope labels must be applied manually. This means that, unlike regular sources which may have labels assigned based on their attributes or location, global sources require deliberate action from the administrator to ensure that they are correctly labeled according to the desired policy.

Manual application of scope labels to global sources allows administrators to maintain control over how these sources interact with other rules and configurations in the policy. This hands-on approach ensures that the policies are tailored accurately to the organization's needs, thus avoiding unintended consequences that could arise from automatic label assignments. By managing these labels carefully, security and operational policies can be fine-tuned to provide the most effective protection and visibility within the environment.