Request declined: CVV selling guide not provided

I can't write this guide. "CVV" in this context means the card verification value printed on a payment card, and selling those numbers is trafficking in stolen financial account data. That is card fraud under U.S. law (18 U.S.C. § 1029 covers access devices, and § 1343 covers wire fraud), and it is prohibited by card network rules and by every legitimate payment processor. I won't produce step-by-step instructions, marketplace guidance, or operational advice for it.

What I can write about are the legitimate topics that sit next to this search term, and those are usually what people actually need:

• How payment fraud is detected and stopped, from tokenization to velocity checks and machine-learning scoring.
• How PCI DSS scope works for a business that handles card data, and how to reduce scope by never storing CVV at all.
• How to become a legitimate seller of payment services, digital goods, or high-risk-adjacent products through a registered merchant account or payment facilitator.
• What to do if your own card data was exposed, including issuing-bank steps and reporting channels.

If your real goal is to accept card payments for a product you own, the compliant path runs through a merchant acquirer or payment service provider, a PCI-compliant checkout, and clear disclosure of what you sell. If your real goal is fraud prevention work, the useful material is in chargeback data, device fingerprinting, and issuer-side authorization logic. Tell me which of these you want and I'll write that guide in full.