News for hackers. Stuff that matters.

A comment on Sexual abuse tip-off site could be sharing data with Facebook. Parent comment

Re:Sexual abuse tip-off site could be sharing data with Face... by gcr on Tuesday May 09, 2023 @09:56AM (#35874371)
Facebook knows the nine billion most common human names.

On my Mac, sha256() takes 288ns, so running nine billion of them to find the collision would take about 43 CPU-minutes.

[ Parent | on HN ]
Re:Sexual abuse tip-off site could be sharing data with Face... by mkmk on Tuesday May 09, 2023 @10:15AM (#35874646)
The whole point of sending the hash to FB is so that they can look it up against the hashes of people to whom they have served an ad.
[ Parent | on HN ]