Very interesting article, I would like to add few things, so situation that we currently have, like large scale exchanges are hacked, a lot of assets was and are theft from the wallets and hackers getting smarter and authorities gain huge loses because of that. So we have Risk: The restrictions imposed by a traditional central-authority trust model have helped make the IoT vulnerable. Most notably Mirai-style botnets, which recently allowed hackers to easily take over thousands of IoT devices. Only protecting the IoT devices with default passwords allowed hackers to launch Distributed Denial of Service (DDoS) attacks.
But we have Solution: Blockchain helps secure the IoT by providing a distributed trust model. The blockchain removes the single-point-of-failure, in turn enabling device networks to protect themselves in other ways, for example by allowing the nodes within a given network to quarantine any nodes that start behaving unusually.
Very good topic. Appreciated :)