4 ms·
How do you know when a user is using stolen credit cards?
by joedev 14y ago
How do you know when a user is using stolen credit cards?
- leeoniya 14y agoi'm assuming a couple chargebacks would need to get the ball rolling.
- plusbryan 14y agoIt's actually usually way too late by the time the chargeback rolls in. Proper villains will have moved on.
- PeterisP 14y agoYou never wait for the chargebacks. If you get chargebacks, they cost you a lot. You try to detect/block immediately - if a thief wants to check 10 cards in 5 minutes, you want to block him in the middle of it. And you immediately revert/cancel any transactions that succeeded so that you don't get chargebacks.
- plusbryan 14y agoA thief running a scam like this will try 5-10 cards before moving on. Your average customer only owns 2-3 cards. We usually flag a user when when they get 3 declines from 3 different cards - and if it looks suspicious enough at that point, we hellban them.