What We Audit in Smart Contracts
Safeguarding the integrity of DeFi protocols from security-critical logic and upgrade mechanisms to external integrations.
Smart contract architectureDesign patterns
Business logicEconomic models
Token mechanismsPermission control
Upgradeability and proxygovernance modules
Integration with oracles, bridges, and DeFi protocols
Testing coverage and deploymentOperational securityDefine 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
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.
Agreement & Scheduling
Confirm project terms, including payment details and a clear audit timeline with defined start and end dates.
Security Audit & Fix Review
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.
Report & Remediation Guidance
Deliver a professionally signed report detailing all findings, risk assessments, and actionable remediation recommendations.
Smart Contract Audit Advantages
Our audits combine deep protocol understanding with proprietary in-house tools and advanced analysis methodologies to ensure complete coverage.
Audit Reports
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Hear from Our Customers
“BlockSec has shown remarkable professionalism in smart contract audits. Their expertise in blockchain and smart contract technology, along with a meticulous approach, ensures thorough identification and resolution of security risks. We highly commend their professionalism and anticipate continued collaboration.”
“It's been a fantastic experience collaborating with BlockSec. You have shown your professionalism in the audit field, especially on the smart contract side.”
“With a keen eye for detail, the team identify potential vulnerabilities and provide robust solutions, ensuring our contracts are secure and optimized. For anyone in need of expert smart contract auditing, I cannot recommend BlockSec highly enough.”
“The BlockSec team is very knowledgeable, punctual, responsive, and diligent during the entire audit process. We highly recommend BlockSec for any smart contract protocols who are seeking great value for money in the audit field.”
“I want to extend my sincerest appreciation to BlockSec for conducting a thorough audit of the Stratos project. Their meticulous approach and insightful feedback have significantly contributed to enhancing our project's security and reliability.”
“It's also worthwhile to look into trustworthy auditing companies like @BlockSecTeam. Such audit reports are a gold mine of knowledge ⛏️🕯️”
Frequently Asked Questions
Top 10 "Awesome" Security Incidents in 2025
To help the community learn from what happened, BlockSec selected ten incidents that stood out most this year. These cases were chosen not only for the scale of loss, but also for the distinct techniques involved, the unexpected twists in execution, and the new or underexplored attack surfaces they revealed.
Newsletter - December 2025
In December 2025, the DeFi sector encountered three significant security incidents, resulting in total losses of approximately $19.7 million. Yearn Finance faced nearly $10 million in losses due to vulnerabilities in its yETH pool and legacy contracts. Trust Wallet suffered a malicious backdoor attack on its Chrome extension, leading to losses of about $7 million. Ribbon Finance experienced a loss of $2.7 million due to improper access controls.
Web3 Smart Contract & EVM Chain Audits | BlockSec
BlockSec secures Web3 with attacker-driven audits, chain reviews, and zero-day detection - battle-tested, blocking 20+ hacks and $20M+ losses.
