To restrict access to only organizationally owned Amazon S3 buckets, the correct approach involves configuring a Real-time Protection policy that leverages Netskope’s instance-awareness capabilities. The “-ALLAccounts” constraint identifier is a Netskope feature that dynamically references all cloud accounts discovered and managed under the organization’s CSPM configuration. By creating a policy with the constraint “Storage Bucket Does Not Match -ALLAccounts” and setting the action to Block, any traffic destined for non-organizational S3 buckets is blocked automatically. This approach is dynamic, meaning newly created organizational accounts are automatically included as CSPM discovers them. Steering must be set to All Traffic to ensure this policy applies comprehensively, not just to recognized cloud app categories.