Let's take a quick trip down memory lane, to the early days of electricity, when scientists were trying to figure out how to protect users from receiving electric shocks. "At the time, it wasn't obvious how to solve this," says Tom Ble-witt, director of principal engineers for Underwriters Laboratories (UL), which develops safety standards and provides testing services. "People didn't have the same knowledge and science, and it took trial and error." It felt daunting, Blewitt says—much like cyber-security does today. Statistics on the threat facing loT devices are overwhelming: HP, for example, estimates that 70 percent of loT devices—webcams, home thermostats and connected light bulbs, to name a few—are vulnerable to an attack.
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