You have an Azure subscription that contains a resource group named RG1 and has Microsoft...

The correct role is Security Reader . Microsoft Defender for Cloud uses Azure RBAC to control access to security information. The Security Reader role provides read-only access specifically to Defender for Cloud data, including security recommendations, security alerts, security policies, and security state , while preventing the user from modifying policies, dismissing alerts, or changing security configuration. Microsoft explicitly recommends assigning the least-permissive role required for the user ' s operational duties.

This scope is especially important for multicloud environments. When an AWS account is onboarded, Defender for Cloud represents that environment through an Azure security connector resource. Microsoft documents that permissions assigned at the resource group containing the AWS connector are inherited for multicloud recommendations and security alerts . Therefore, assigning Security Reader to Group1 at RG1 provides the analysts with the required visibility into the connected AWS environment.

Although Reader can also view recommendations and alerts, it grants broader read access to Azure resources within RG1 and is therefore less restrictive. Security Administrator permits security-policy changes and alert/recommendation management, while Owner provides extensive resource-management and access-control permissions.

Thus, Security Reader at RG1 satisfies the requirement with the least privilege.