FILE - In this March 2, 2016, file photo, David Limp, Amazon Senior Vice President of Devices, pushes down on an Echo Dot in San Francisco. Voice assistants such as Google Home, Apple’s Siri and Amazon Alexa have always been susceptible to accidental hijack. In January 2017, a woman's 6-year old daughter ordered a dollhouse and sugar cookies simply by asking Alexa for them through an Echo Dot. Since these devices are still new, they're still having growing pains. But the next generation of voice assistants may come with better security, including individual voice recognition and even image recognition. (AP Photo/Jeff Chiu, File)

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