I think the previous posters point is that the risk incurred by an Amazon Echo is the exact same as any modern smartphone. That iPhones and Android devices have

I think the previous posters point is that the risk incurred by an Amazon Echo is the exact same as any modern smartphone. That iPhones and Android devices have supported Ok Google and Hey Siri for a while now, are also already always listening, and already get OTA updates. Your claim that "these microphone devices are new" seems to imply you're excluding almost every smart phone we already have in our pocket, with the exact same network attached hot mic concerns.