WTF is this? These are and have been problems since forever. Yes, we now have to worry whether someone tries to murder you by replacing your roomba with a RoboWars KillerBot, contrived as it may be. Or even worse... Your voice and image may be FALSIFIED by unscrupulous actors and we are defenseless? There are still people alive from a time when any correspondence was written by hand, delivered by third parties, and the world kept turning.
The only way these contrivances would be harmful was if they were unknown to society at large.