4 ms·
Not quite, card networks only know transaction level information if the merchant processing the card transaction passes back level 3 data. Merchants only pass l
by propogandist 4y ago
Not quite, card networks only know transaction level information if the merchant processing the card transaction passes back level 3 data. Merchants only pass level 3 data to secure a processing % discount on network fees. This data can be used to mine user behavior by the card companies, and unless you opt-out of Visa/Mastercard's data mining program at the card level, they do this.
- londons_explore 4y agoI was under the impression that the vast majority of merchants do this though... And any that don't still need to keep records for tax purposes, and the authorities could still request that anytime and without your knowledge. It is frequent that news reports say "attacked with a hammer purchased by the defendants credit card earlier the same day". So it appears the facility to search card payments is fairly widely used.
- kasey_junk 4y agoMost merchants do _not_ send level 3 data. For the most part it’s only sent on travel related transactions or for government vendors.
- gruez 4y ago>It is frequent that news reports say "attacked with a hammer purchased by the defendants credit card earlier the same day". So it appears the facility to search card payments is fairly widely used. Not really, because the search could have happened in the opposite direction (eg. they ask the store for a list of transactions that were made with the suspect's card). I doubt they're asking visa/mastercard to give them a list of all hammers sold in the past month.