Don't know of anyway to avoid this other than using cash. The speed the sharing takes place is pretty insane as well, I've made purchases of a new brand of X item at my local grocery chain only to have amazon suggest the exact item to me on the same day.
Blur by Abine, albeit for online purchases only.
This sounds almost unbelievable. How sure are you that it wasn't suggested for some other reason? And how did they know WHAT you bought, given credit card companies don't get that info?
Agreed, I don't see how that's possible given the strict controls over personally identifiable card purchase data. Somebody would have to be breaking the law.
It's entirely possible they were going off of browsing history + where I bought from, but I've 100% had experiences where I appeared to see retargeted ads for same day purchases in brick and mortar stores. Perhaps they were joining through my credit card number only, which is also associated with my online profile?
This could also be ad retargeting. You'll often see ads for things you looked at, but did not buy.