asks Columbia University in theirwriteup of the research.
No One’s There
Brian Chappell, Chief Security Strategist,BeyondTrustdismisses the idea outright.
James Maude, BeyondTrusts Lead Cyber Security Researcher, also points the finger at our faulty memory.

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Not Worth The Effort
Our fears arent totally unfounded.
Chappell asserts that virtually all smart devices with voice interfaces rely on a trigger word to begin processing speech.
The local detection of the trigger word was driven by concerns over privacy.

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Chappell, however, thinks the fault lies elsewhere.