Building Secure Lightning Network dApps: Best Practices and Secure Check Lists

This post is an audit-oriented security guide for Bitcoin Lightning Network dApps that catalogs six high-risk areas — preimage handling, timelock engineering, event ordering/mempool state, crash recovery and idempotency, griefing/jamming, and on-chain fee/confirmation strategy — explains common failure modes and real-world cases (including an LND CVE), and provides concrete mitigation and auditing recommendations to prevent fund loss and stuck funds in swaps and Lightning-based services.