Magic? Nope! Just math!

Improve your encryption skills with Unicode!

Looking for a new way to encode your secret messages? Try steganography!

How hackers can steal the messages you send over the internet, and how to tell if your communications are secure.

5 hands-on books & activities to hone your cipher skills.

Hide information in plain sight using a clever code and a good book.

How scientists finally cracked the code behind the mysterious language of Ancient Egypt.

Learn about the infamous Enigma machine and how its “unbreakable” code was finally defeated.

Learn about the Native soldiers and the creative cypher code that helped win WWII.

In an era before telephones, a clever code was created to send messages by telegraph.

A simple zigzag pattern can scramble your messages beyond recognition.

Pigpen ciphers uses alien-like symbols to hide secret messages.