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Authy got hacked, and 33 million user phone numbers were stolen
(appleinsider.com)
This is a most excellent place for technology news and articles.
Syncthing across all of your devices. Use your desktop or other home PC to sync to a secure cloud service using rsync or freefilesync on a schedule. If you know all the words I just said it's like an hour of work, if not it's probably 4-6 (piecemeal, not a block).