How to stop 'Card Testers'

We've had a rash of 'card testers' who enter a $1 donation and hundreds of attempts, obviously testing card numbers/data.
We've enabled the Captcha; however, we're wondering if JoomlDonation with the Authorize.net plugin provides the following functionality for transactions:
* Provides a single response for all declined transactions (it looks like it does, but not completely suer)
* Uses the AVS (Address Verivication System
* CVV/CV2 (Card Verification System)

If anyone has any other tips please share.

Thanks

Also, is there any way to integrate the Authorize.net AFDS (Advanced Fraud Detection Suite) functionality into the JoomDonation Authorize.net payment plugin?

Hi

You would have to enable captcha. That's the only solution for now. In the future, we can improve code so that when there are card testers donation like that, we can block the process / ips (working together with Admin Tools extension).

But for that feature, it would take us few weeks to have it implemented as we are quite busy now

For other features you mentioned:

* Uses the AVS (Address Verivication System
* CVV/CV2 (Card Verification System)

I think it is something needs to be configured within your Authorize.net account. It is not something we could program in the code of the extension

Regards,

Tuan

Well, I think I found a bug.

All the 'card tests' were done at $1.00 or less; however, we have the minimum donation value set to $10.

We need this fixed ASAP.
We are using ver. 4.3 (which appears to be the latest version).

Is there some place where the individual campaign can override that minimum donation?