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The flow complexity in today’s IoT supply chain is enormous. To produce an item in a global network of suppliers requires a delicate dance of people, assets, systems, information, companies, and even governments. The opportunities for security vulnerabilities abound. In this paper, we describe the security challenges facing an IoT supply chain. We first start by describing what an IoT endpoint is, their various types together with their concomitant security challenges. An IoT endpoint is an output of an IoT supply chain, and the enumeration of its security challenges is then used to describe what IoT attack surfaces are, together with the threats and vulnerabilities facing a typical IoT supply chain. We use the iPhone/Apple supply chain as an exemplar, creating a map, and using that map to depict likely vulnerabilities and attacks. We conclude by discussing the mitigations against potential vulnerabilities in such a supply chain.

Towards Mapping the Security Challenges of the Internet of Things (IoT) Supply Chain