[QUOTE=CookingWithGas]
We did some in-house stuff too, including manual review of some transactions. But we did very well with the third-party outfit. They have a neural net that provides a rating of 0-1000 on a transaction, the higher the number, the more suspect. You have to feed them a lot of data. The more transactions they handle, the smarter their system gets. You take the number and do whatever you want with it. You can set a threshold for outright rejecting a transaction, which is what we did, after a little tuning.
And we never took any transactions whatsoever from Indonesia. That place was the fraud capital of the world.
[/QUOTE]
Yeah they use the Falcon system as I recall. I was on the team that first implemented its beta test for debit cards (previously it was only used on credit card portfolios for issuers). It was a bit flaky back then but I’m glad First Data has made improvements after acquiring the technology.
Indonesia was quite infamous for a while (well the fraudsters were routing through servers in indonesia to be more accurate. they could have been anywhere). Our headaches came mostly from Russia and Eastern Europe.
If you ever in the bay area we should grab a beer sometime and share war stories. 
:end of hijack:
CVV sucks!