As many as 13 previously unknown vulnerabilities in home Wi-Fi routers and networked storage systems are set to be disclosed at the Black Hat computer security conference that kicks off in Las Vegas on Wednesday. Known as zero-day vulnerabilities, they allow hackers to exploit previously unknown security flaws in a wide range of devices and software. Such security problems — and the techniques that can be used to defend against them — are a staple at the annual conference of elite hackers, researchers, experts, and analysts. These vulnerabilities are notable not only because they’re new, but because they represent the latest threat to the connected home, the holy grail of the so-called “Internet of Things” in which everything from your smoke detector to your light bulbs are connected to a central management hub.