BlockSec
2 min readAug 1, 2024

In today’s rapidly evolving blockchain landscape, numerous blockchain networks are emerging. For projects and users alike, the security of these networks is crucial for safe deployment and on-chain interactions, making security audits essential in ensuring blockchain safety.

We are thrilled to announce that BlockSec has completed the security audit for Neo X, an EVM-compatible sidechain of Neo, with the ability to eliminate toxic MEVs. We provided a comprehensive security audit through our systematic and business logic-focused methodology, establishing a robust first line of defense for the Neo X ecosystem.

You can review the audit report here.

Introducing Neo X: A Brief Overview

Neo X is an EVM-compatible sidechain incorporating Neo’s distinctive Delegated Byzantine Fault Tolerance (dBFT) consensus mechanism. Its launch marks a significant step forward for Neo since the upgrade from Neo Legacy to Neo N3.

Serving as a bridge between Neo N3 and the widely used EVM network, Neo X will play a crucial role in expanding the Neo ecosystem and offering developers more opportunities for innovation. As described in the design document, the dBFT protocol requires more than half (i.e., 1/2 instead of 2/3) as the consensus threshold for voting. This means that 4 validators are sufficient to achieve consensus since the top 7 candidates will be selected for each epoch.

BlockSec’s Audit for Neo X

The audit specifically focuses on the security of the Neo X node, a Golang implementation based on the Ethereum protocol execution layer. The audit scope covers the discrepancies between the original Geth implementation and the forked parts.

In summary, we have identified several issues of varying risk levels that require attention. The Neo team has promptly responded to and resolved these issues, ensuring that the Neo X network meets high security standards and providing a solid foundation for its future growth.

About BlockSec

BlockSec ensures the security of blockchain ecosystems throughout their entire lifecycle.

We offer comprehensive EVM chain audit services to ensure robust security at the pre-launch stage. Leveraging our cutting-edge research capabilities and systematic auditing methodology, we have excelled in blockchain auditing. Our expertise is evidenced by multiple presentations of blockchain security papers at prestigious conferences and numerous reports of zero-day attacks.

Our attack monitoring and blocking platform, Phalcon, ensures blockchain security at the post-launch stage. Phalcon empowers projects of the supported chains to detect suspicious transactions, receive instant alerts, and automatically block hacks. Additionally, Phalcon includes two support tools that enhance the user experience: Phalcon Explorer, a transaction visualization tool that helps users easily view and analyze suspicious transactions; and Phalcon Fork, which creates a real testing environment mirroring mainnet states. This allows users to test configured response rules and ensure they work effectively.

Our esteemed blockchain clients include Neo X, Manta, Merlin, Polygon zkEVM, XAI, EOS Network Foundation, Kava, NEAR Foundation, Evmos, Aurora, and others.

Schedule a comprehensive security audit for your project here.

Book a quick demo of Phalcon here.

BlockSec
BlockSec

Written by BlockSec

The BlockSec focuses on the security of the blockchain ecosystem and the research of DeFi attack monitoring and blocking. https://blocksec.com

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