If the original post is true and Facebook is leaking message based data into systems that produce ads (3rd party or 1st party), they have a responsibility to diagnose and resolve the issue. Despite their responsibility to do so, they are not aligned with doing so.
Excuses like "the user did something bad" aren't productive.
A warning that the users expectations (secure communications) do not match reality (3rd party keylogged communications) seems like the minimum level of responsibility:
If WhatsApp derived information is being seen in advertisements, it is Facebook's responsibility. It is in Facebooks best (next quarters profits based) interests to not be responsible.
Excuses like "the user did something bad" aren't productive.
A warning that the users expectations (secure communications) do not match reality (3rd party keylogged communications) seems like the minimum level of responsibility:
https://maheshikapiumi.medium.com/allowance-of-third-party-k...
If WhatsApp derived information is being seen in advertisements, it is Facebook's responsibility. It is in Facebooks best (next quarters profits based) interests to not be responsible.