Compliance
Sub-Processor
A third party engaged by a data processor to process personal data on behalf of the data controller.
A sub-processor is another data processor engaged by a processor to carry out specific processing activities on behalf of the data controller.
Requirements
- The processor must obtain prior authorization from the controller before engaging a sub-processor (either specific or general with notification)
- The same data protection obligations from the DPA must flow down to the sub-processor
- The processor remains liable if the sub-processor fails to fulfil its obligations
In Practice
Most SaaS companies maintain a public list of sub-processors and provide a mechanism for customers to object to new sub-processors.
Legal Reference
GDPR Article 28(2) and (4).