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Blockchain Infrastructure Security Audit

Secure your L1/L2 chains, wallets, and other infrastructure stack against systemic risks.

Trusted by 500+ Clients
BlockSec has helped secure over $50B in digital assets.
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BITWAY
MEGAETH
STRATOS
EOS Network Foundation
AURA Network
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BITWAY
MEGAETH
STRATOS
EOS Network Foundation
AURA Network
Morph
BITWAY
MEGAETH
STRATOS
EOS Network Foundation
AURA Network
Morph
BITWAY
MEGAETH
STRATOS
EOS Network Foundation
AURA Network

What We Audit in Blockchain Infrastructure

Securing the core foundation of Web3 from blockchain execution layers and custom VMs to complex wallet ecosystems.

L1/L2 Chain Security
L1/L2 Chain Security
Audit clients, VM/runtime, and protocol components for safety and liveness.
Rollup & Scaling Security
Rollup & Scaling Security
Assess rollup frameworks, proofs, and L1 ↔ L2 bridging assumptions.
Wallet & Key Management Security
Wallet & Key Management Security
Review signing flows, permissions, custody, and phishing-resistant controls.
Other Infrastructure Security
Other Infrastructure Security
Evaluate cross-chain, RPC/SDK, off-chain services, and automation tooling.

How to Complete a Security Audit with BlockSec

01

Scope & Quotation

Define the audit scope based on your finalized codebase and design documentation. A detailed quotation will be prepared, tailored to the project's complexity and specific requirements. A non-disclosure agreement (NDA) can be signed if required.

Scope & Quotation
02

Agreement & Scheduling

Confirm project terms, including payment details and a clear audit timeline with defined start and end dates.

Agreement & Scheduling
03

Security Audit & Fix Review

Conduct a comprehensive security audit using advanced in-house tools (customized when necessary). Findings are shared and discussed with the customer, and corresponding fixes are reviewed. For complex projects, multiple audit-review rounds may be required.

Security Audit & Fix Review
04

Deliverables & Strategic Recommendations

Deliver a professionally signed report detailing all findings, risk assessments, and actionable remediation recommendations.

Report & Remediation Guidance

Blockchain Infrastructure Audit Advantages

Our audits combine deep protocol understanding with proprietary in-house tools and advanced analysis methodologies to ensure complete coverage.

Multi-Auditor Cross-Review
Each engagement is staffed with a dedicated audit team and uses independent reviews plus systematic cross-checks to reduce blind spots and improve coverage across complex systems.
Multi-Auditor Cross-Review
Comprehensive Architecture & Threat Modeling
Model threats across L1/L2 clients, rollup proofs and bridging assumptions, wallet signing and custody flows, and RPC/SDK plus off-chain services, focusing on correctness, trust boundaries, and failure modes.
Comprehensive Architecture & Threat Modeling
Risk-Focused Scoping
Identify and prioritize the highest-impact, highest-exposure areas across L1/L2 clients and protocol components, rollups and bridges, wallet and key-management flows, and critical infrastructure such as RPC/SDK and off-chain services.
Risk-Focused Scoping
Battle-Tested In-House Tooling
Powered by our battle-tested differential testing frameworks and customized fuzzing systems, proven across millions in bug bounties, to uncover inconsistencies, edge-case failures, and hidden vulnerabilities.
Battle-Tested In-House Tooling

Audit Reports

View More Reports

Hear from Our Customers

We had a great experience working with BlockSec on the security testing of Mega-EVM, our stateless validator, and the SALT data structure. They’re responsive, diligent, and easy to collaborate with, with a fast feedback loop throughout the audit. Their deep expertise across both smart contracts and node-level systems made them a strong partner for complex infrastructure work.

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Yilong Li
Co-Founder, MegaETH

On the audit side, the BlockSec team has left a very positive impression on us. Their audits are never a mere formality; instead, they dive deep into contract implementation details and specific business logic, covering edge cases and extreme scenarios that are often overlooked. The entire process was smooth and highly efficient. Their bug localization and remediation advice were clear and actionable, helping us significantly reduce potential security risks before product launch.

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Victor
Founder, Manta

BlockSec has built a strong reputation for conducting highly technical audits for blockchains and smart contracts. Supporting Solidity (EVM-compatible ecosystems), Rust (NEAR & Solana), and Go (Cosmos), the company primarily relies on thorough manual reviews, enhanced by automated differential fuzzing tools and static analyzers. This approach allows BlockSec to identify deep logic flaws in code and provide actionable recommendations to ensure project security before launch.

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Calvin
Core Builder, Impossible Finance

BlockSec's deep expertise in smart contract security has been invaluable to exSat. Their rigorous audits consistently uncover subtle yet critical vulnerabilities, delivering clear, practical remediations. With their meticulous, code-level scrutiny, we gain unparalleled confidence in our protocol's integrity—making BlockSec our trusted partner for secure, resilient smart contracts.

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Joshua
exSat CGO (Chief Growth Officer)

Frequently Asked Questions

STOP Hacks at Sequencer Level with Phalcon Security

Post-launch monitoring is not enough. STOP intercepts malicious transactions at the sequencer level before they reach the blockchain.

phalcon security

Empower Your Infrastructure with a Foundation of Trust and Security.

Launch with confidence backed by a top-tier blockchain infrastructure security audit.