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Tenant Isolation, Cross-Tenant B2B & DLP Policy Chains

🏛️ Enterprise Power Platform Admin Suite, Managed Environments & PAYG Architecture⏱ 20 min⭐ 200 BASE XP⌨ HANDS-ON LAB

Tenant Isolation, B2B Federation & DLP Hierarchies

By default, Power Platform connectors allow authenticated users to connect to other Microsoft Entra tenants if they possess guest credentials. In highly regulated enterprises, this introduces the risk of cross-tenant exfiltration.

Tenant Isolation Architecture

Enabling Tenant Isolation closes all inbound and outbound cross-tenant connections at the cloud gateway. Connections to external tenants are rejected unless an explicit Tenant Isolation Rule is registered for a trusted partner tenant ID:

  • Inbound Rule: Allows users or apps from an external partner tenant to connect to this tenant's Dataverse and Power Platform resources.
  • Outbound Rule: Allows makers in this tenant to create connections targeting resources located inside the partner tenant.

Granular Connector Action Control & Endpoint Filtering

Standard Data Loss Prevention (DLP) classifies connectors into Business, Non-Business, and Blocked. Modern DLP introduces sub-connector controls:

  • Connector Action Control: Disables specific hazardous actions within an allowed connector (e.g., allowing Send an email (V2) in Office 365 Outlook while blocking Forward an email).
  • HTTP Endpoint Filtering: Restricts generic HTTP connectors strictly to an approved whitelist of enterprise corporate URLs and API domains (e.g., https://api.contoso.com/*).
⌨ HANDS-ON LABConfigure Cross-Tenant Isolation & Inbound/Outbound Rules
⭐ +200 XP

Enable Tenant Isolation to block unauthorized data sharing across corporate boundaries while configuring explicit inbound/outbound rules for approved partner tenants.

1Enable Tenant Isolation and whitelist a verified partner tenant ID using PowerShell.
lab-sandbox — simulated environment
INFINITY LAB SANDBOX v2.6 — simulated shell
Type the command for the current objective. Helpers: "hint", "solution", "clear".
$
OBJECTIVE 1 / 1 — type "hint" if stuck
SYNAPSE VERIFICATION
QUERY 1 // 3
What is the primary security objective of enabling Power Platform Tenant Isolation?
To disconnect the company from the public internet entirely
To block unauthorized cross-tenant connections and data movement between different Microsoft Entra tenants
To delete all guest accounts in Microsoft Teams
To prevent employees from working remotely