It's possible that the client blindly fetches a mapping from keyword to ads, saw... | Hacker News

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		worker767424 on Sept 23, 2022 \| parent \| context \| favorite \| on: Ask HN: Ads triggered by WhatsApp “end to end encr... It's possible that the client blindly fetches a mapping from keyword to ads, saw the keyword client-side, then requested the ad.

Drakim on Sept 23, 2022 | [–]

You'd indirectly reveal what those keywords are to Meta by which ads are being requested. If an ad for a sex toy is being requested, it's pretty obvious what the two parties are talking about.

atoav on Sept 23, 2022 | [–]

Still information leaks the encrypted channel and the trust is broken.

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