Captcha is provided as part of CB AntiSpam. In what way were you hacked? What payment gateway are you using?

Doesn't sound like a compromise of CBSubs. Sounds like they registered some bots and just attempted transactions with likely stolen cards. So it doesn't sound like you were hacked either. Just frustrating bot spam.

Protecting your registration with CB AntiSpam can certainly keep a large chunk of bots out, but they're getting more and more sophisticated due to AI. I recommend setting up mod_security on the server side of things as well to help protect against common exploits as well.

Please PM backend super user login credentials (see link in my forum signature) and can at least take a look to confirm it was just bot spam.

So far I don't see any problems. It looks like bots just attempted payments with stolen cards. That's not your fault or the implementations fault.

We're using hosted payments for eWay. This means all CBSubs is responsible for is redirecting to eWay with an amount to be billed. eWay would then send them back and CBSubs would confirm the payment. At no point is the payment handled by CBSubs in any way. This was implemented years ago using the documentation at the below links which doesn't appear to exist anymore and they didn't bother setting up redirects for.

The above however just appears to be v1 or v2 implementation of their Responsive Shared Page below. Regardless all we're doing is giving customer data to eWay and they give us a URL to redirect to. After that the payment is entirely in eWays hands.

eway.io/api-v3/#responsive-shared-page

This means all the fraudulent checks is entirely on them, but the bot problem is of course entirely on you. I do recommend securing your registration form using CB AntiSpam.

As for the payment processor there's nothing I can do there as explained above we don't handle the payment at all. If they have implementation recommendations on what we should be doing here then we can review making adjustments, but we're already sending nearly all the optional data (e.g. customer name, invoice address, etc..). If you want a more featureful provider that has modern security practices I would recommend moving to Stripe.