News for hackers. Stuff that matters.

A comment on Tell HN: WhatsApp Is Down. Parent comment

Re:Tell HN: WhatsApp Is Down by thih9 on Tuesday October 25, 2022 @06:28AM (#33328616)
What kind of unknown things with an address book is WhatsApp doing?
[ Parent | on HN ]
Re:Tell HN: WhatsApp Is Down by thehta on Tuesday October 25, 2022 @07:14AM (#33328977)
The idea is that Meta uses WhatsApp contact lists to build and maintain their social graphs, which is in turn used for advertising.
[ Parent | on HN ]
Re:Tell HN: WhatsApp Is Down by em500 on Tuesday October 25, 2022 @07:26AM (#33329068)
WhatsApp uploads the address book from the user's phone to Meta's servers and after that it's unclear to outsiders what they do with it. Hence "unknown".
[ Parent | on HN ]