I remember the days when cvv/cvc was not asked for by websites. These 'credit card number generators' were in huge demand and sold for a lot of cash. Of course you could always dig around and get them for free.
The latest of these programs was written in vb4, which I could decompile to look at the source (the algorithm wasn't easily available then).
CVV/CVC doesn't have much to do with it (I can process cards with nothing more than the number). The issue was that sites were not authorizing cards in real time.
The latest of these programs was written in vb4, which I could decompile to look at the source (the algorithm wasn't easily available then).