> In-app ads are a significant change from WhatsApp’s original philosophy. Jan Koum and Brian Acton, who founded WhatsApp in 2009, were committed to building a simple and quick way for friends and family to communicate with end-to-end encryption
End-to-end encryption was added by Meta, they reused (part of) the Signal app code for this.
This was a big topic for years, I am surprised by this oversight.
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