Earlier quoted context omitted.
If you enter the wrong CVC or ZIP and it is declined, does that increment your blocked fraud counter?
No. It used to but they turned it off in Dec 2021; notice in my dashboard says it improved sales revenue by 0.5% but only added fraud risk by 0.0004%
So if you block on a mismatch, you’re throwing away an approved charge every single time since the bank already decided that other signals say the transaction is okay. The bank can block it themselves if they think it’s suspicious (which from my understanding wouldn’t increment this metric).