Imagine this: you’re trying to log into an account, but you can’t remember which variation of your go-to password you used. Was it the one with the exclamation point or the one with your pet’s name?

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.

A detailed analysis of passkeys vs passwords, examining WebAuthn protocols, asymmetric key cryptography, phishing resistance ...

In the digital world, where practically every transaction involves an online account, safeguarding sensitive data is crucial. Passwords have powered authentication for decades. They protect our email, ...

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 ...