Smart devices, once relegated to science fiction and our imaginations, are now ubiquitous. Today, there's a market for everything from a Wi-Fi connected refrigerator to a voice-operated speaker that doubles as a personal assistant. The internet of things (IoT) -- the software-operated network of physical devices, appliances, vehicles -- grows day by day as these devices become part of our daily lives. A March 2018 survey found that 22% of Americans used IoT appliances in their homes, and this trend is widespread across the globe. Amazon recently announced a plan to expand Amazon Echo services to Italy and Spain.

Privacy groups have filed a complaint about My Friend Cayla dolls to the Federal Trade Commission, arguing that they spy on children. Privacy groups have filed a complaint about My Friend Cayla dolls to the Federal Trade Commission, arguing that they spy on children. Tech toys have become popular holiday gifts. Many are interactive, some even claim educational benefits. But one such toy has privacy advocates very worried this year.