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Researchers Tricked Google Home and Alexa Into Eavesdropping and Password Phishing

What if Google and Amazon employees weren’t the only ones who’d listened through your voice assistant? Ars Technica reports:

The threat isn’t just theoretical. Whitehat hackers at Germany’s Security Research Labs developed eight apps — four Alexa “skills” and four Google Home “actions” — that all passed Amazon or Google security-vetting processes. The skills or actions posed as simple apps for checking horoscopes, with the exception of one, which masqueraded as a random-number generator. Behind the scenes, these “smart spies,” as the researchers call them, surreptitiously eavesdropped on users and phished for their passwords…

The apps gave the impression they were no longer running when they, in fact, silently waited for the next phase of the attack…. The apps quietly logged all conversations within earshot of the device and sent a copy to a developer-designated server. The phishing apps follow a slightly different path by responding with an error message that claims the skill or action isn’t available in that user’s country. They then go silent to give the impression the app is no longer running. After about a minute, the apps use a voice that mimics the ones used by Alexa and Google home to falsely claim a device update is available and prompts the user for a password for it to be installed….

In response, both companies removed the apps and said they are changing their approval processes to prevent skills and actions from having similar capabilities in the future.