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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.
Yes, like Signal!
Which does not only use end-to-end encryption for communication, but protects meta data as well:
Source: https://signal.org/blog/signal-is-expensive/
I haven't verified that claim investigating the source code, but I'm positive others have.