For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message using a special rule, known only to you and your intended audience.

The original version of this story appeared in Quanta Magazine. For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message using a ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The Key and Peele alum's recurring status in the show was announced earlier this year, but ...

Finding keys in Gray Zone Warfare isn't easy. Some tasks in Gray Zone Warfare require you to have a key in order to unlock a room you need to get into and when you don’t have that key a quest can feel ...