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Introduction
Microsoft has announced the retirement of the Azure portal for Microsoft Sentinel, with a full transition to the Defender portal by July 1, 2026. This move aims to streamline security operations under a unified interface, enhancing SOC workflows and threat detection capabilities. Organizations must plan their migration early to ensure seamless adoption and leverage new features effectively.
Learning Objectives
- Understand the timeline and importance of migrating from Azure Sentinel to Defender portal.
- Learn key technical steps for validating workflows and configuring Defender for Sentinel.
- Explore best practices for training teams and optimizing security operations post-migration.
You Should Know
1. Validate Sentinel Workspace Readiness
Command (Azure CLI):
az monitor log-analytics workspace show --resource-group <RG-Name> --workspace-name <Workspace-Name> --query "provisioningState"
Steps:
- Run the command to verify your Sentinel workspace is active.
2. Ensure the output returns `”Succeeded”` before migration.
- Check for linked services (e.g., Logic Apps, ARM templates) that may need reconfiguration.
- Enable Defender for Sentinel in the New Portal
PowerShell Command:
Set-AzSecurityWorkspaceSetting -Name "default" -Scope "/subscriptions/<Sub-ID>/resourcegroups/<RG-Name>/providers/Microsoft.OperationalInsights/workspaces/<Workspace-Name>" -Enabled $true
Steps:
1. Authenticate to Azure using `Connect-AzAccount`.
- Enable Sentinel integration in Defender portal via the above command.
- Confirm activation under “Microsoft Defender XDR” > “Settings” > “Workspace settings.”
3. Migrate Custom Analytics Rules
KQL Query (Export Rules):
SecurityAlert | where ProviderName == "Microsoft Sentinel" | project RuleName, Query
Steps:
- Export existing rules from Azure Sentinel using the KQL query.
- Recreate rules in Defender portal under “Hunting” > “Custom detection rules.”
- Test rules with historical data to ensure accuracy.
4. Reconfigure Data Connectors
Azure CLI Command:
az security data-connector create --name "AzureActivity" --workspace-name <Workspace-Name> --resource-group <RG-Name> --alerts "Enabled" --subscription-id <Sub-ID>
Steps:
- List current connectors via
az security data-connector list. - Recreate connectors in Defender portal using the command above.
- Validate data flow under “Settings” > “Data connectors.”
5. Audit Permissions and RBAC Roles
PowerShell Command:
Get-AzRoleAssignment -Scope "/subscriptions/<Sub-ID>/resourcegroups/<RG-Name>/providers/Microsoft.OperationalInsights/workspaces/<Workspace-Name>" | Export-Csv -Path "Sentinel_Roles.csv"
Steps:
- Export existing role assignments to audit access controls.
- Reassign roles in Defender portal under “Access control (IAM).”
- Use GDAP (Granular Delegated Admin Permissions) for MSPs.
6. Test Incident Workflow Automation
Logic Apps HTTP Trigger (Post-Migration):
{
"triggers": {
"When_a_response_to_a_Microsoft_Sentinel_alert_is_triggered": {
"type": "Http",
"inputs": {
"schema": {}
}
}
}
}
Steps:
- Recreate or update Logic Apps workflows to point to Defender APIs.
2. Test automation with mock incidents.
- Monitor logs for errors via
AzureDiagnostics | where ResourceProvider == "Microsoft.Logic/workflows".
7. Train Teams on Defender Portal Features
Key Differences:
- Unified alert queue for Sentinel and Defender XDR.
- Enhanced hunting capabilities with integrated threat intelligence.
- Cross-workspace queries via “Advanced hunting.”
What Undercode Say
- Key Takeaway 1: Early migration reduces disruption risks, as Defender portal offers superior integration with Microsoft’s security ecosystem.
- Key Takeaway 2: Automation and RBAC audits are critical to maintaining SOC efficiency during the transition.
Analysis:
Microsoft’s consolidation into Defender portal reflects a broader industry shift toward unified security platforms. Organizations that proactively migrate will gain access to advanced features like automated investigations and cross-signal correlation. However, the transition demands meticulous planning—particularly for MSSPs managing multi-tenant environments. The 12-month runway allows for iterative testing, but delaying could lead to last-minute configuration gaps.
Prediction
By 2026, Defender portal’s AI-driven analytics will likely set a new standard for SOC operations, rendering legacy SIEM interfaces obsolete. Organizations embracing this shift early will outperform peers in detection speed and operational cohesion.
Resources:
IT/Security Reporter URL:
Reported By: Markolauren Defenderportal – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
