Data classification requires tagging data being stored to make it easily searchable, trackable and more efficiently protected. At a basic level, this involves defining a number of classification levels and assigning these to pages, clearly displaying the level on the page. In order to secure the data, your organization should also restrict who can access pages of a certain level (or clearance).
Compliance for Confluence lets administrators customize each level's name, description and color. When a page has been classified as a certain level, it is clearly displayed on the top of the page, alerting anyone viewing the page about data handling procedures with the particular content (e.g. whether it is public or internal only).
The following diagram shows an example of a government security classification policy showing varying amounts of levels:
Compliance for Confluence displays these levels clearly at the top of the page: