Its master’s voice
There have been a number of recent demonstrations of attacks that leverage voice interfaces. In March, researchers showed that, even when Windows 10 is locked, the Cortana “assistant” responds to voice commands—including opening websites. And voice-recognition-enabled IoT devices have been demonstrated to be vulnerable to commands from radio or television ads, YouTube videos, and small children.
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These kinds of attacks—focused on home-automation hubs and stand-alone connected appliances—have not yet been seen widely. But the increasing adoption of connected appliances (with many home appliances now coming with connectivity by default) and the difficulty of applying security patches to such devices make a Mirai-style botnet of refrigerators increasingly plausible, if not likely.
Soltan and his team looked at three possible categories of potential malicious demand manipulation:
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