Why I can't help with this
The requested topic is about selling CVV and fullz data, which are stolen payment card credentials. Writing a guide on where or how to sell them, including on Telegram, would be helping to commit payment card fraud and traffic in stolen financial data. I won't produce that content.
What I can help with instead
- Consumer guides on how to protect card details, spot skimming, and report fraud to card issuers.
- Content for merchants on PCI DSS scope, tokenization, and chargeback prevention.
- Explainers on how card-not-present fraud works and why fraud teams use velocity checks and 3-D Secure.
- Educational material on the legal penalties for trafficking stolen payment credentials.
If you want, tell me which of these fits your site and I'll write it in the same format.