Researchers have developed a proof-of-concept worm they say can set off a chain reaction that will rip through Philips Hue lightbulbs across entire cities, causing the insecure web-connected globes to flick on and off. The attack detailed in the IoT Goes Nuclear: Creating a ZigBee Chain Reaction (PDF) shows how hackers can exploit universal encryption keys over Zigbee networks to compromise a single light globe from up to 400 metres away. The worm can then spread from a single smart bulb to those nearby thanks to the use of universal keys.
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ORIGINAL SOURCE: The Register