You can use secret codes to take full advantage of ChatGPT, and broken down the four best ways to perform specific and useful tasks.

Last year, jail staff intercepted a letter written in secret code orchestrating the murder of a staff member. The jail provided Business Insider with a copy of the decoded letter.

Like a page ripped out of a really bad spy novel, Trump critics appear to be slipping secret messages in their resignation letters. But put away that decoder ring: the code has been cracked.

The three-page letter uncovers secrets of the 16th century, including assassination fears. It took the French team of scientists months to decode the letter's secret language.

According to a blog post detailing the new feature, you’ll be able to input letters, numbers, special characters, and even emojis to create a unique secret code that only you know.

So there are many ways to encode "E," for example. Also, sometimes whole sequences of plaintext letters, for example "SCH," are encoded with a single cipher letter.

Researchers have finally cracked a complex code used in a top secret letter from 1547 that the Holy Roman Emperor and King of Spain, Charles V, wrote when he was fearing for his life.

Mary Queen of Scots was beheaded in 1587. The researchers believe that before her death, Mary began secret correspondence with her supporter Michel de Castelnau de Mauvissière, the French ambassador ...