Explainers: Chargebacks

3D Secure Explained: Why Some Card Payments Ask for a Second Step
Why your bank asks you to approve some card payments, when it can skip the step, and who pays for fraud.

Chargeback Fee: What a Disputed Card Payment Costs a Merchant
What Stripe, PayPal and Square charge per chargeback in 2026, and which fees come back when you win.
