WhatsApp whitepaper removed sentence about never having access to private keys
Probably because:<p>All chats use the same Signal protocol outlined in this whitepaper, regardless
of their end-to-end encryption status. The WhatsApp server has no access to
the client’s private keys, though if a business user delegates operation of their
Business API client to a vendor, that vendor will have access to their private
keys - including if that vendor is Facebook.<p>(<a href="https:&#x2F;&#x2F;scontent.whatsapp.net&#x2F;v&#x2F;t39.8562-34&#x2F;122249142_469857720642275_2152527586907531259_n.pdf&#x2F;WA_Security_WhitePaper.pdf" rel="nofollow">https:&#x2F;&#x2F;scontent.whatsapp.net&#x2F;v&#x2F;t39.8562-34&#x2F;122249142_469857...</a>, p. 13)