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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.
Telegram has its supposedly E2EE protocol which isn't used by most of Telegram users, but also there have been a few questionable traits found in it.
Google is trusted a bit more than Pavel Durov, but it can well do a similar thing.
And yes, Android is a much larger heap of hay where they can hide a needle.