A distributed denial of service (DDoS) attack that on Friday severely impacted internet access for many U.S. web denizens was found to be in part enabled by a botnet targeting unprotected "Internet of Things" devices. For Apple, the revelation vindicates a controversial walled garden approach to IoT borne out through the HomeKit protocol. As detailed yesterday, unknown hackers set their sights on Dyn, an internet management company that provides DNS services to many major web entities. A series of repeated attacks caused websites including The Verge, Imgur and Reddit, as well as services like HBO Now, and PayPal, to see...