Payments · 3-D Secure
Guides / Payments
3-D Secure
Every card payment on Inkress goes through 3-D Secure, the bank's own check that the cardholder is paying. There's nothing to build.
Where it happens
On Inkress's payment page. The customer's bank decides whether to ask them anything; often it approves without a prompt. You only see the result.
What counts as paid
Only a fully verified result can complete a payment, and Inkress confirms it with the card networks rather than trusting the customer's browser. An order is paid only after that.
Subscriptions
The first payment on a subscription sets up an authenticated agreement with the card networks. Renewals refer to it, so the customer isn't asked again.
Testing
| Card number | What happens |
|---|---|
4012 0000 0002 0071 | Visa. Approved without a prompt. |
4012 0000 0002 0006 | Visa. The bank asks for a password: enter 3ds2. |
4012 0000 0002 0121 | Visa. Authentication fails, so the payment is declined. |
Was this page helpful?Updated Oct 8, 2026