A financial organization is transitioning its customer-facing portal to a cloud-based service. Considering the data's sensitive nature and regulatory compliance needs, which task would typically be under the organization's control after the migration?
Maintaining the environmental controls such as humidity and temperature within the data center.
Upgrading network infrastructure components like routers and switches to support higher data throughput.
Ensuring the physical servers hosting the service are up-to-date with the latest firmware patches.
Implementing secure coding practices and patch management for the portal's codebase.