Crypto Payment Security Checklist Released by NOWPayments and BlockSec

NOWPayments and BlockSec have released a free checklist to help businesses ensure the security of their crypto payment systems. The Crypto Payment System Security and Technical Compliance Checklist is designed for companies that already accept cryptocurrency, are planning to launch it, or want to review their existing payment setup.

The comprehensive guide covers 25 controls across nine categories, including private key and wallet security, smart contract security, transaction verification and signing, identity and accounts, and on-chain monitoring and incident response. Each control is a specific step that teams can verify rather than a general recommendation.

The checklist is intended to be used daily by businesses, helping them identify gaps in their controls, assign ownership, and create a practical list of next steps before those gaps turn into incidents. It's not a certification or a replacement for legal advice but an educational resource designed to remain useful as payment infrastructure and security threats change.