In Illumio policy management, what does a rule primarily govern?

In Illumio policy management, a rule primarily governs traffic access. This means that these rules define which traffic is allowed or denied between workloads, applications, or users within a network environment. The primary objective of these traffic access rules is to ensure that only authorized communication occurs, thereby providing enhanced security for applications and data.

By setting up specific rules, organizations can control how data flows between different nodes, preventing unauthorized access and minimizing the attack surface. This level of granularity helps organizations to implement a zero-trust security model, where trust is never assumed based solely on network location.

While the other options, such as data encryption, user authentication, and device compliance, are important components of an overall security strategy, they do not fall under the direct governance of Illumio policies. Instead, policies focus on managing connectivity and controlling how traffic moves throughout the environment, which is crucial for maintaining security in modern distributed systems.