Introduction
At the large corporation firm, a product manager discovered that sensitive client data was being shared via unsecured cloud links during cross-team collaboration. Concerned about potential breaches, the manager escalated the issue to IT security, prompting an urgent audit. The investigation revealed that several departments were unknowingly bypassing encryption protocols to expedite file transfers. Leadership responded by implementing automated DLP tools and mandatory training on secure sharing practices. Within weeks, risky transfers dropped exponentially, reinforcing a culture of accountability and data stewardship across the organization. These are the steps they took. The following guidance will go through Exchange Online, SharePoint Online, OneDrive, and Teams.
Learning objectives
In this module, you'll learn how to:
- Map sensitive information types (SITs) and labels to supported DLP locations.
- Apply DLP best practices in Exchange Online to prevent external sharing of sensitive data.
- Protect sensitive files stored and shared in SharePoint and OneDrive using sensitivity labels, DLP, and access controls.
- Enforce DLP policies in Microsoft Teams to safeguard chats, channels, and shared documents.
Prerequisites
Before starting this module, ensure you:
- Have basic knowledge of Microsoft Purview Data Loss Prevention (DLP).
- Are familiar with sensitivity labels and sensitive information types in Microsoft Purview.
- Understand how Microsoft 365 services such as Exchange Online, SharePoint, OneDrive, and Teams are used in your organization.