You see a few $1 charges.
Then a couple more.
All under the radar.
All seemingly harmless.
But those transactions?
They might not be mistakes.
They might be card testing fraud in action.

Here’s how it works:
Fraudsters get their hands on stolen credit card data — often in bulk.
They test these cards by making small purchases or donations, just to see which cards are active.
Once they find a “working” card?
They go big.
Expensive items.
Subscription abuse.
Chargebacks.
Losses.
Damage to your brand’s reputation.

What makes card testing so dangerous?
It hides in plain sight.
Blends in with real customer behavior.
By the time you notice it, the fraudster’s already gone — and you’re left holding the bill.

That’s where early detection matters.
- Spotting abnormal velocity
- Flagging suspicious IPs and devices
- Catching behavior that just doesn’t look right

At CrossClassify, we specialize in protecting businesses from the “invisible” fraud that slips past traditional defenses — including card testing.
Because securing your application means catching the quiet threats before they get loud.