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Alexa and Siri Can Hear This Hidden Command. You Can’t. May. 11th, 2018|11:39 am

Researchers can now send secret audio instructions undetectable to the 
human ear to Apple’s Siri, Amazon’s Alexa and Google’s Assistant.

оригинал исследования:https://arxiv.org/pdf/1708.09537.pdf

A group of students from University of California, Berkeley, and Georgetown 
University showed in 2016 that they could hide commands in white noise 
played over loudspeakers and through YouTube videos to get smart devices 
to turn on airplane mode or open a website.

This month, some of those Berkeley researchers published a research 
paper that went further, saying they could embed commands directly into 
recordings of music or spoken text. So while a human listener hears someone 
talking or an orchestra playing, Amazon’s Echo speaker might hear an 
instruction to add something to your shopping list.

“We wanted to see if we could make it even more stealthy,” said Nicholas 
Carlini, a fifth-year Ph.D. student in computer security at U.C. Berkeley and 
one of the paper’s authors.

Mr. Carlini added that while there was no evidence that these techniques 
have left the lab, it may only be a matter of time before someone starts 
exploiting them. “My assumption is that the malicious people already 
employ people to do what I do,” he said.


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