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U.S. officials urge Americans to use encrypted apps amid unprecedented cyberattack
(www.nbcnews.com)
This is a most excellent place for technology news and articles.
I use a one time pad with all of my contacts. I ask them to eat or burn each page when they are used up.
I go one further and also use public/private key pairs that my acquaintances must use to decrypt the scrambled letters I mail them.
All my official communications are in a rotating cypher of Navajo, Hungarian, and Korean.
I just send back and forth plain gibberish. Good luck breaking that!