BlockSec

BlockSec is a leading blockchain security and compliance firm founded in 2021 to address the evolving security and regulatory challenges in the Web3 ecosystem. The company blends advanced security research with real-world experience in cyber defense and financial compliance to provide comprehensive protection for blockchain protocols, exchanges, and enterprises.

Core Products and Services

BlockSec offers a full-stack security and compliance suite that covers the entire lifecycle of blockchain projects. Their flagship Phalcon platform provides real-time threat monitoring, automatic hack blocking, and AML/CFT compliance screening. The company delivers expert smart contract audits and infrastructure audits for L1/L2 chains, along with specialized tools including MetaSleuth for fund tracing, Phalcon Explorer for transaction debugging, MetaSuites browser extensions, and Anti-MEV RPC services.

Key Strengths

BlockSec has established itself as a trusted security partner through battle-tested results: protecting over $50 billion in digital assets, successfully blocking 20+ attacks, and rescuing $20 million in funds through innovative counter-exploitation techniques. The company pioneered several industry firsts, including the first successful hack blocking (HomeCoin 2022), first counter-exploitation of a hacker's contract (Platypus 2023), and first $5 million rescue (ParaSpace 2023). Their security approach combines multi-auditor independent cross-review workflows, comprehensive threat modeling, risk-focused prioritization, and proprietary in-house tooling including static analyzers and LLM-powered detectors. Phalcon's detection system achieves over 99% accuracy with less than 1% false positives by analyzing 200+ attack characteristics at the mempool stage.

Notable Clients and Use Cases

The company serves 500+ enterprise clients including major exchanges (OKX, Bybit, Bitget, Crypto.com), leading protocols (Uniswap Foundation, Compound Finance, PancakeSwap), L1/L2 chains (Mantle, Manta, Polygon zkEVM, Filecoin), and institutional players (Cobo, Amber Group, Matrixport). BlockSec provides tailored solutions for DeFi protocols, centralized exchanges, L1/L2 chains, stablecoin issuers, crypto payment platforms, and RWA tokenization projects. The platform supports multiple chains including Ethereum, BSC, Solana, Base, Arbitrum, Avalanche, Optimism, and many others.

Why Choose BlockSec

BlockSec delivers end-to-end Web3 protection with a proven track record of preventing losses and rescuing funds. Their multi-layered security approach combines pre-launch audits with post-launch real-time defense through Phalcon's automated blocking system. The company holds AICPA SOC certification, is GDPR ready, and serves as a regulator-trusted partner across 27+ jurisdictions. With expertise from both academic research and frontline security operations, BlockSec provides actionable solutions backed by published research and continuous innovation in blockchain security technology.