Gone are when you couldn't start your car's engine without a physical key. Modern vehicles today come with key fobs that are more useful than just starting your car and locking and unlocking its doors ...

Apple launched a new iMessage security feature yesterday in beta called Contact Key Verification. We learned the basics of how it works yesterday but now Apple has published technical details of how ...

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 ...