Have you ever wondered how keys work? I teach a course in computer security where we learn how locks function – and also how they can be broken or bypassed. We do this because locks teach important ...

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.

Posts from this topic will be added to your daily email digest and your homepage feed. The Aqara U200 is a retrofit door lock with a separate keypad and a fingerprint reader. It may also be the first ...