I stick to this except when I make some unusual credit card purchase and immediately get called to verify it. I don't like it, but usually I need to make the pu

I stick to this except when I make some unusual credit card purchase and immediately get called to verify it. I don't like it, but usually I need to make the purchase. If someone had the feed of risk denied CC purchases, they could gather a lot of personal information. Probably there is lower hanging fruit for fraud.