An IoT platform is typically a third-party vendor provided/hosted SaaS-based tool that is used to support IoT device and endpoint management, connectivity and network management, data management, processing and analysis, application development, cybersecurity, access control, monitoring, event processing, and interfacing/integration. Documentation about such a third party can provide important information about supply chain cybersecurity practices and vulnerabilities to allow for the IoT user to more accurately determine risks related to the use of an IoT platform.
Sources:
NISTIR 8259B