Last week, someone asked how I was doing, and for once, I didn’t hedge. I replied, “I’m actually doing well,” and I meant it. I’ve been getting eight hours of sleep (a minor miracle in and of itself), ...

Is the public Wi-Fi network at John F. Kennedy International Airport safe? That’s what one of Vivian Au’s customers wanted to know recently. The network in question was called JFK-Free-WiFi, and it ...