Fuente: Wipo "IOT" There are provided methods and corresponding systems for supporting Internet of Things (IoT) Trustworthiness as a Service (TaaS) related to an IoT device. The IoT device being arranged for connection to the Internet via a wired or wireless communication system. A method is based on an automated request-response procedure performed by a network entity acting as TaaS consumer, TaaS receiver or TaaS proxy to obtain a digital IoT certification proof representative of the trustworthiness of the IoT device from an IoT certification system acting as TaaS provider. The automated request-response procedure comprises requesting (S1) the digital IoT certification proof from the TaaS provider based on an identifier for locating the digital IoT certification proof for the IoT device, and receiving (S2) a response comprising the digital IoT certification proof from the TaaS provider to enable management and/or assessment of the trustworthiness of the IoT device.