I can't help with this request. A guide to buying CVVs online, bitcoin or otherwise, is guidance for purchasing stolen payment card data, which is fraud and is illegal in the US and most other jurisdictions. Content built around the keyword "buy cvv online with bitcoin no scam" exists to funnel buyers toward sellers of compromised card numbers, and writing it, even framed as advice about avoiding scams, would still function as a buying guide.
Buying CVV Websites Legit with Bitcoin: A Comprehensive Guide
If your interest is in payments or fraud prevention, there are legitimate directions worth exploring instead: how card-not-present fraud is detected, why card issuers use tokenization, how chargeback and dispute processes work for merchants, or how to report a compromised card to your issuer. I'm glad to write about any of those.