[kweks]

Stripe is a payment gateway, not an anti-fraud solution. I'd recommend using services such as wyllo or Signifyd for anti-fraud. They will pre-filter against network intelligence signals, and if they approve the transaction, will guarantee your funds, even if a chargeback is lost, and even if you lose.

[plumeria]

Is the usage-based pricing of Signifyd et al cheaper than using 3D secure? What about "micro" transactions?