How to Use a Basic Cipher to Encode and Decode a Secret Message
22:36
YouTubeAndrew Bustamante
How to Use a Basic Cipher to Encode and Decode a Secret Message
Former covert CIA intelligence officer Andrew Bustamante teaches you how to use a basic alphabet cipher to encode and decode secret messages. This cipher process has saved lives and changed the course of history. Now it is part of your Everyday Spy toolkit. Learn an age-old cipher technique that still has everyday use, whether protecting your ...
71.9K viewsMay 12, 2019
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