Explanation:

Enabling User and Entity Behavior Analytics (UEBA) in Microsoft Sentinel requires specific permissions in both Microsoft Entra ID (Azure AD) and the Azure Sentinel workspace. The goal is to grant the least privilege necessary for the user (User1) to enable UEBA and manage entity behavior analytics.
Microsoft's documentation for UEBA setup specifies that to enable UEBA for an Entra tenant, the user must have access to identity-related signals and security settings within the Microsoft Entra environment.
Specifically:
"To enable UEBA and connect Microsoft Entra ID data, the user must be assigned the Security Administrator role in Microsoft Entra ID. This role allows management of security-related features without granting full directory or global admin privileges." The Security Administrator role provides just enough access to security configurations, alerts, and risk data, aligning with the principle of least privilege.
Other roles:
* Global Administrator is overly privileged.
* Security Operator can only view alerts, not configure settings.
* Identity Governance Administrator focuses on access reviews and entitlement management, not UEBA setup.
Hence, the correct Entra role is Security Administrator.
For the Azure side, Microsoft's official Sentinel RBAC guidance states:
"To enable or configure UEBA in a Sentinel workspace, the user must have the Microsoft Sentinel Contributor role. This role allows enabling and configuring UEBA, managing analytics, and viewing data within Sentinel." The Sentinel Contributor role grants permissions to configure data connectors, UEBA settings, and entity analytics features but not workspace-wide administrative rights.
Other options:
* Microsoft Sentinel Automation Contributor is limited to playbook and automation configurations.
* Security Admin and Security Assessment Contributor roles apply to Microsoft Defender for Cloud and general Azure security posture, not UEBA configuration.
# Final Correct Roles:
* Microsoft Entra role: Security Administrator
* Azure role: Microsoft Sentinel Contributor