Courtesy of Anna Lee Beyer
Elliott Harrell
Kevin Mazur/WireImage for Parkwood via Getty Images
Wendy Altschuler
Ashlee Tuck
Marleen Moise/ Getty Images
StockPlanets/Getty Images
Molly Allen
Contributor/Getty Images

We all keep secrets. It’s easy to do once you’ve committed to it. Just don’t say anything. But it can be harder when you want to share a little bit of information, without your confidante inferring tea that you didn’t intend to spill. Computer scientists often draw this distinction between security and privacy.…