[dx034]

It's all encrypted. Encryption in group chats is a bit weaker to provide better usability (there was an article recently I believe) but messages itself are encrypted. And since we're talking here about usage of data for ad tracking, any encryption is likely good enough.

They can of course still track meta data, e.g. tailor your ads based on interest of contacts. But if you only use whatsapp (ad free), they own't make any money with it.