Which type of accounts are generally exempt from password expiration policies?

Service accounts are typically exempt from password expiration policies due to their specific use case in environments where they manage services, processes, or applications rather than being used primarily by an individual user. These accounts are often created for automated tasks or system processes that require consistent access to resources without interruption. If a service account's password were to expire, it could lead to service disruptions, application failures, and could complicate system management.

In practice, service accounts are designed to operate in an environment where changes, like password resets, can significantly impact system operations. Therefore, they are often assigned more stringent privileges and maintained with longer password lifetimes while ensuring they are protected through other security measures, such as limited network access or using strong, complex passwords.

User accounts, administrator accounts, and guest accounts usually have policies in place that promote regular password changes as part of maintaining security hygiene. However, this does not apply to service accounts, which need uninterrupted access for their intended functionalities.