Slack, Discord, WhatsApp, iMessage, Signal, Facebook Messenger, Teams, Instagram, TikTok, Hangouts, Twitter, Skype - How many IM tools do you use? Why don't they all talk to each other? https://www.eff.org/deeplinks/2021/07/tower-babel-how-public-interest-internet-trying-save-messaging-and-banish-big
@eff they shouldn't. I don't want messages sent through Facebook read also by my receiver's Google app.
The solution is E2E encryption and free federated software like XMPP, Matrix or Email
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