Sensitivity Labels

Sensitivity labels are configurable classifications created in Microsoft Purview Information Protection that attach metadata—and optionally encryption, watermarks, or header/footer markings—directly to files and emails. Because the label persists with the content as it moves, protection such as encryption stays enforced across services like SharePoint, Teams, and Exchange. For the AB-900 exam, the key distinction is between a sensitivity label and a retention label: sensitivity labels govern confidentiality and access, while retention labels govern how long content is kept or deleted. They serve different purposes and can both apply to the same item, making “which Purview feature fits which requirement” a common exam differentiator.