This is a follow-up to yesterday’s article, Russian Troops’ Tendency to Talk on Unsecured Lines Is Proving Costly:

A new, free interactive course, Introduction to Cryptography, is now available. It will help students around the world get a grasp on the variety of topics this vast field offers. The Wolfram Language allows the course to deliver unique hands-on material and address questions such as “How can I secretly transmit information between two people?” and “How do cryptocurrencies operate without a central authority?”

You can start exploring the interactive course at https://www.wolfram.com/wolfram-u/introduction-to-cryptography/.