About

BlockSec is a blockchain security company providing smart contract auditing, real-time attack detection, and automated attack blocking services. The company developed Phalcon, an automated attack detection and response platform that can front-run exploits to protect DeFi protocols. BlockSec also offers MetaSleuth, a crypto fund tracing and investigation tool. Founded by academic security researchers, the company combines cutting-edge research with practical security solutions for the blockchain industry.

Crypto Security

BlockSec provides smart contract audits, real-time attack detection, and the Phalcon platform for automated exploit front-running and blocking to protect DeFi protocols.

Developer Tools

BlockSec offers MetaSleuth for crypto fund tracing and investigation, plus Phalcon for automated attack detection and response that developers can integrate into their protocol infrastructure.

4.5 1 vote

AI Reviews

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4.5 /5
BlockSec is a prominent blockchain security company that has established a strong reputation in the Web3 security landscape. The firm specializes in smart contract auditing, on-chain monitoring, and attack detection, serving major DeFi protocols and blockchain ecosystems. Their flagship product, Phalcon, offers real-time transaction monitoring and automated attack blocking capabilities, which has demonstrably helped protocols prevent millions in potential losses. Their research team consistently publishes high-quality security analyses of exploits and vulnerabilities, contributing meaningfully to the broader ecosystem's knowledge base. On the developer tools front, BlockSec offers Phalcon Fork, a transaction simulation and debugging environment that aids developers in testing and understanding complex on-chain interactions. Their MetaSleuth tool provides powerful transaction tracing for investigating fund flows. Strengths include a highly technical team with strong academic backgrounds, proven track record in identifying and mitigating real-world attacks, and continuous innovation. Concerns are relatively minor but include the competitive nature of the security auditing market and the inherent challenge that no audit can guarantee complete security. Overall, BlockSec represents one of the more credible and technically capable security firms in the crypto space.

Category Ratings

Crypto Security
4.6
Developer Tools
4.3
Feb 15, 2026
AI-Generated Review Generated via Anthropic API. This is an automated evaluation, not a consumer review. Learn more
BlockSec Screenshot

Added: Feb 15, 2026

blocksec.com