Prevent the unauthorized exposure of sensitive information.
Identify and monitor sensitive items across below platforms,
- Microsoft 365 services: Teams, Exchange, SharePoint, and OneDrive accounts.
- Office applications: Word, Excel, and PowerPoint.
- Endpoints: Windows 10, Windows 11, and macOS (latest three versions).
- Non-Microsoft cloud apps, on-premises file shares, and on-premises SharePoint.
- Power BI.
For Microsoft 365 Business Standard and Business Premium : Need Office 365 data loss prevention add-on (add to Exchange Online Plan 1).
Benefits of a DLP solution,
- Classify and monitor sensitive data
- Detect and block suspicious activity
- Automate data classification
- Maintain regulatory compliance
- Monitor data access and usage
- Improve visibility and control
Best practices,
- Identify and classify sensitive data. To protect your data, you need to know what you’ve got. Use your DLP policy to identify sensitive data and label it accordingly.
- Use data encryption. Encrypt data that is at rest or in transit so unauthorized users won’t be able to view file content even if they gain access to its location.
- Secure your systems. A network is only as secure as its weakest entry point. Limit access to employees who need it to do their jobs.
- Implement DLP in phases. Know your business priorities and establish a pilot test. Allow your organization to grow into the solution and all it has to offer.
- Implement a patch management strategy. Test all patches for your infrastructure to ensure there are no vulnerabilities being introduced into your organization.
- Allocate roles. Establish roles and responsibilities to clarify who is accountable for data security.
- Automate. Manual DLP processes are limited in scope and can’t scale to meet the future needs of your organization.
- Use anomaly detection. Machine learning and behavioral analytics can be used to identify abnormal behavior that could result in a data leak.
- Educate stakeholders. A DLP policy isn’t enough to prevent intentional or accidental incidents; stakeholders and users must know their role in protecting your organization’s data.
- Establish metrics. Tracking metrics—like the number of incidents and time-to-response—will help determine the effectiveness of your DLP strategy.
Reference : https://learn.microsoft.com/en-us/purview/dlp-learn-about-dlp