Microsoft Purview | Data Loss Prevention – Extend Purview data security to the network layer via Entra GSA integration

Microsoft Purview extends data loss prevention to the network layer via integration with Entra Internet Access, enabling inspection and protection of sensitive data in AI interactions and cloud services. It supports policy enforcement, alerts, and auditing, with rollout from July to October 2026, affecting Purview, Entra, and Defender administrators. What and Why: Extend Microsoft Purview data security controls to the network layer by integrating with Entra Internet Access. This integration helps organizations detect and protect sensitive data in text, prompts, and AI interactions by enabling inspection at the network layer, enforcing actions based on DLP policies, and identifying risky user activity through Insider Risk Management. It also helps prevent sensitive data from being shared with untrusted cloud applications—including generative AI platforms, social media, and collaboration tools—across browsers, apps, APIs, and add-ins, while managing alerts and incidents through Purview and Microsoft Defender. For more information, refer to Protect sensitive data in motion across SaaS and AI apps with Microsoft Purview and Microsoft Entra. This message is associated with Microsoft 365 Roadmap ID 566528. Rollout Schedule: Public Preview: Beginning early July 2026; expected to complete by late July 2026 General Availability (Worldwide): Beginning late September 2026; expected to complete by late October 2026 Impact on Your Organization: Who is affected: Purview administrators Security administrators Compliance administrators Entra Global Secure Access administrators Platforms/Services: Microsoft Purview Microsoft Purview DLP Microsoft Entra Internet Access Microsoft Entra Global Secure Access Microsoft Defender What will happen: The integration will become available automatically in eligible tenants as rollout completes. Administrators can create policies that inspect network traffic using Entra Internet Access. Organizations can apply Purview classifications and DLP controls to network-layer traffic. Sensitive text, prompts, and files can be inspected and protected when transmitted to supported cloud and AI services. Administrators can audit or block policy violations based on sensitive information types, sensitivity labels, or user risk levels. Alerts and incidents can be surfaced through Microsoft Purview and Microsoft Defender. Existing inline web traffic policies and network-based Purview protections continue to function without interruption. The capability is administrator-configured and is not enabled for enforcement until policies are created and deployed. […]

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