Tech Q&A: What Alexa hears, offline Netflix, fun Facebook features, converting to HEIF and more

Q: I have an Amazon Echo and I am really concerned that Amazon is listening all the time. Does the Echo have any privacy settings? A: Ever since Echo hit the market, people have wondered how much the little glowing tower hears -- and remembers. Is Echo silently eavesdropping on our conversations, even between "wake phrases"? So far, Echo hasn't caused any mass hysteria, and most people are pretty content with the performance of their virtual assistant.