Devices like Amazon Echo, Google Home and the forthcoming Apple Homepod are bringing artificial intelligence to the masses. They offer the potential to increase our efficiency by managing our calendar, contacts and to-do lists. With a simple verbal command, they can bring us customized news briefings and stock market reports and even brighten us up with music and jokes. I am a fan, but if you decide to invite one of these devices into your daily routine, you need to understand the privacy implications.