How to Use a Playfair Cipher to Encode and Decode a Secret Message

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Knowing how to encode and decode a Playfair cipher has saved lives and changed the course of history. Now it is part of your Everyday Spy toolkit. Test your spy skills in this FREE spy game! https://hq.everydayspy.com/ort/

Former covert CIA intelligence officer Andrew Bustamante teaches you how to use a Playfair cipher to encode and decode secret messages. Learn a famous WWI-era cipher technique credited with saving lives and killing bad guys that still has everyday use, whether protecting your passwords, encrypting your personal data, or just having fun with family!

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