Advancements in artificial intelligence (AI), especially large language models (LLMs) like ChatGPT and open-source counterparts, are reshaping how people communicate daily. These AI systems generate ...

A Hillhouse student’s eyes widened as he applied grape juice and heat to what appeared to be a blank piece of paper — but instead held a secret message in invisible ink, written as part of a course ...

Doomsday teaser has been officially released online, and it contains a hidden message that could have two meanings for the ...

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 ...

Researchers are hiding instructions for A.I. reviewers in preprint studies using white text, which is invisible on a white background. Screen recording of the preprint study "Near-Optimal Clustering ...

History, as we often encounter it, can seem like a collection of established facts and grand pronouncements. Yet, the most profound insights into the past often lie not just in the words on a page, ...

Bitcoin’s blockchain allows users to embed hidden messages, functioning as both a financial ledger and a permanent message board. Bitcoin’s OP_RETURN field enables users to store short messages ...

Using the Notes app on your iPhone as a messaging app is a surprisingly clever way to have a discreet conversation. You can use it to plan a surprise party for a loved one or disguise sensitive ...