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Avast fined $16.5 million for ‘privacy’ software that actually sold users’ browsing data
(www.theverge.com)
This is a most excellent place for technology news and articles.
I haven't looked into Proton, but BitWarden is open source both server side and client side.
Proton is open source as well. Free tiers are supplemented by subscribers. https://proton.me/support/proton-plans#proton-free