Engineering requires deep attention to detail, but sometimes engineers take it a step further by adding secret, playful ...

Secret messages can be hidden inside fake conversations generated by AI chatbots. The technique could give people a way to communicate online without arousing the suspicion of oppressive governments.

You can send secret messages on your iPhone using the Apple Notes app! Just create a note, tap Share > Collaborate, give edit access to a friend, and start chatting in real-time—no third-party app ...

Have you ever wanted to send a secret message to a friend that no one else can read? Invisible inks can help you do that! When you use an invisible ink to write a message, it quickly disappears. The ...