What service provides Microsoft Support Engineers with access to an organization's Exchange Online data?

The correct service that provides Microsoft Support Engineers with access to an organization's Exchange Online data is Customer Lockbox. This service is designed to enhance security and ensure that any access by Microsoft support personnel is tightly controlled and transparent.

With Customer Lockbox, organizations have full control over whether to grant access to their data during support incidents. Specifically, when a support engineer needs to access an organization's Exchange Online data to resolve an issue, they will require explicit approval from the organization's admin. This ensures that the organization's data privacy and security are maintained and that any access is logged and auditable.

By utilizing Customer Lockbox, organizations can enforce a stronger governance model and maintain visibility and control over their data, reinforcing trust in how Microsoft handles sensitive information. This is especially critical for businesses that prioritize compliance with privacy regulations and data security standards.