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 ...

So you want a smart lock. Maybe you want to lock your door without leaving the bed, or maybe you prefer key codes instead of keeping track of physical keys. Smart locks are great for these things, but ...

Locking your SSN is one of the best ways to protect yourself from identity theft, and you can do it for free. Geoff Williams Contributor Geoff Williams is a journalist and author. His byline has ...

I'm a big fan of data security in a world where hacks happen constantly, with complex account takeover scams now assisted by AI. It's not just about securing apps and logins with strong, unique ...