From the Washington Post:
Would you let a stranger eavesdrop in your home and keep the recordings? For most people, the answer is, "Are you crazy?"
Yet that's essentially what Amazon has been doing to millions of us with its assistant Alexa in microphone-equipped Echo speakers. And it's hardly alone: Bugging our homes is Silicon Valley's next frontier.
Many smart-speaker owners don't realize it, but Amazon keeps a copy of everything Alexa records after it hears its name. Apple's Siri, and until recently Google's Assistant, by default also keep recordings to help train their artificial intelligences.