Sensitive information is no longer limited to documents – Teams chats, SharePoint sites, emails, and meetings often contain confidential content as well. Sensitivity labels in Microsoft Purview enable a consistent protection strategy across groups, content, and communications. This session outlines a step-by-step approach to implementation: from initial classification to applying labels and automating protection in everyday work. The focus is on practical concepts that ensure data security in Microsoft 365 without compromising user experience.