---
id: 5420
title: "Securing Layer 1 Blockchain Protocols: Security Guide"
source_domain: hackenproof.com
source_url: "https://hackenproof.com/blog/securing-layer-1-blockchain-protocols-guide"
published_at: "2026-06-11 06:58"
tags: ["web3", "smart-contracts", "blockchain", "consensus", "security-guide", "layer-1", "p2p-network"]
phying_url: "https://phying.com/item/5420"
lang: en
---

# Securing Layer 1 Blockchain Protocols: Security Guide

## Summary

A security guide to Layer 1 blockchain protocols: consensus risks such as 51% and Sybil attacks, smart-contract pitfalls like re-entrancy and integer overflows, and P2P network weaknesses.

## Intelligence Metadata

- **Sources:** hackenproof.com
- **Published:** 2026-06-11 06:58
- **Original:** https://hackenproof.com/blog/securing-layer-1-blockchain-protocols-guide
- **Phying News:** https://phying.com/item/5420