If you guys haven't been following the Vault 7 revelations from Wikileaks, it looks like anything and everything has a backdoor. If you're truly concerned about privacy anymore the only alternative is to go live in a jungle because the CIA is everywhere, what we've doubted for ages has been validated.
This is some of the info that has been confirmed so far in the leaks, no wonder they push these digital assistants like the Alexa and Echo on consumers so much, they might as well assign a policeman to your bedroom.