Amazon device recorded private conversation, sent it out to random contact
Voice is not for personal computing.  It is best for social computing.  This is a completely new metaphor for interactivity, and problems are to be expected.This incident speaks more to Amazon's speech recognition rather than a weakness of voice.  Am not an expert in the topic, but it certainly seems like Alexa tries to hear patterns rather than translating speech to text then text to commands.  Google Home's recognition is much better.