Blockchain Security
“Smart contract audits, L1/L2 protocol reviews, exchange and wallet assessments, bridge security, and TEE application reviews — two independent senior teams per engagement, augmented by frontier AI.”
Hexens
“Hexens is the blockchain security firm trusted by protocols that can't afford to get hacked. 300+ engagements. Zero client exploits. Request a quote today.”
Products & services
AI & Agentic Security
“Security audits, adversarial testing, and red teaming for AI agents, LLM-powered applications, MCP integrations, agentic commerce protocols, and autonomous systems that move money or take actions.”
Cryptography Security
“Security audits for ZK circuits and proving systems, FHE implementations, MPC protocols, cryptographic primitives, TEE-backed applications, and post-quantum constructions.”
Application and Network Security
“APT simulation, web/mobile/API penetration testing, source-code review, cloud infrastructure audits, and network penetration testing for blockchain-adjacent stacks.”
Security Consultancy
“Architecture review, threat modeling, compliance readiness, DevSecOps integration, DDoS resilience, and social engineering training — security that starts before the first line of code.”
Questions & answers
What is Hexens?
“Hexens is the go-to security firm for projects that cannot afford a single mistake. Our security and R&D team consists of CTF champions, bug bounty leaderboard veterans, and world-class vulnerability researchers — the people other firms benchmark against.”
What makes Hexens different from other blockchain security firms?
“The result. Zero post-review incidents.”
What is a smart contract audit?
“A smart contract audit is a systematic security review of blockchain-based code — designed to surface vulnerabilities, logic errors, access control flaws, and exploitable edge cases before deployment. At Hexens, this means rigorous line-by-line manual review by senior engineers, supported by proprietary tooling and our dual-team methodology. The goal: code that cannot be broken.”
What services does Hexens offer?
“The full blockchain and general security surface. Smart contract audits across every language and chain.”
We already have an auditor. Why would we need Hexens?
“Every audit is performed by humans, and no single team — no matter how skilled — catches everything. A second review with a fundamentally different methodology reduces that margin of error.”
[Q. 02]What makes Hexens different from other blockchain security firms?
“The result. Zero post-review incidents.”
Who should be getting their AI systems audited?
“Any organization deploying AI agents with access to production systems, user data, financial operations, or external services. This includes AI-native companies building products on language models, blockchain protocols integrating AI agents for trading or governance, enterprises deploying MCP servers or agentic workflows, platforms built with AI code generation tools, and anyone implementing agentic payment protocols like x402 or AP2.”
What is the difference between AI security and traditional application security?
“Traditional application security tests deterministic systems — given the same input, you expect the same output. AI systems are probabilistic, context-dependent, and capable of autonomous decision-making.”
What is agentic commerce security and why does it matter?
“Agentic commerce refers to autonomous AI agents conducting transactions — paying for API calls, purchasing data, procuring services, and settling payments without human intervention. Protocols like x402, Google’s AP2, and Stripe/OpenAI’s ACP are building the payment rails for this economy.”
Do you audit AI systems outside of blockchain?
“Yes. While Hexens built their reputation in blockchain security, our AI security practice serves any organization deploying AI agents, LLM-powered applications, or autonomous systems in high-stakes environments. The offensive methodology — adversarial thinking, independent review, zero assumptions — applies regardless of whether the system manages on-chain assets or enterprise infrastructure.”
Why do blockchain projects need penetration testing beyond smart contract audits?
“Smart contract audits cover on-chain code. Penetration testing covers everything else — web applications, APIs, cloud infrastructure, mobile apps, and the middleware connecting on-chain and off-chain systems. Several of the largest blockchain exploits in history originated from off-chain vulnerabilities, not smart contract bugs. A comprehensive security posture requires both.”
Does Hexens perform APT simulation and red teaming?
“Yes. Hexens conduct full-scope adversarial simulations replicating the tactics of advanced persistent threat actors. Unlike a standard penetration test that focuses on individual vulnerability discovery, APT simulation chains together reconnaissance, initial access, lateral movement, privilege escalation, and data exfiltration into multi-stage attack campaigns — testing how your entire security stack responds to a determined adversary operating over days or weeks.”
What certifications do Hexens’ penetration testing engineers hold?
“Our offensive security engineers hold OSCP, OSCE, OSWE, and other professional certifications. Beyond certifications, our team includes CTF champions and bug bounty leaderboard veterans with track records of discovering vulnerabilities in high-value targets. Every engineer directs frontier AI models as force multipliers — extending the reach and depth of every engagement beyond what manual-only testing can achieve.”
What types of blockchain security audits does Hexens perform?
“Hexens perform smart contract audits (Solidity, Rust, Move, Vyper, Cairo), L1/L2 blockchain security reviews, centralized exchange security assessments, hardware and software wallet audits, DeFi protocol reviews, bridge/cross-chain security assessments, and TEE application reviews.”
What makes Hexens’ blockchain security audits different from other firms?
“Three things. First, every engagement runs two independent security teams in parallel — a structural methodology no other firm replicates at scale.”
How does AI augmentation improve a blockchain security audit?
“Senior engineers direct frontier AI models to extend their reach across large and complex codebases. In practice, this means broader code path coverage, faster identification of cross-contract interaction vulnerabilities, more comprehensive generation of adversarial test cases, and deeper analysis of complex execution paths — particularly in DeFi protocols with economic attack vectors.”
Does Hexens audit TEE-based blockchain applications?
“Yes. Hexens perform security assessments of trusted execution environment applications used in blockchain infrastructure — covering enclave design, attestation verification, side-channel resistance, and the security boundary between trusted and untrusted execution domains. TEE security is increasingly critical for MEV protection, oracle computation, key management, and confidential transaction processing.”
[Q. 02]What makes Hexens’ blockchain security audits different from other firms?
“Three things. First, every engagement runs two independent security teams in parallel — a structural methodology no other firm replicates at scale.”
What is a ZK circuit security audit?
“A ZK circuit security audit is a specialized review of zero-knowledge circuits: the constraint systems that enable proofs of computational correctness without revealing private data. The primary vulnerability class is underconstrained circuits, which allow attackers to forge valid-looking proofs for incorrect statements.”
Why is cryptography security different from smart contract security?
“Smart contract audits review application logic written in readable languages like Solidity business logic, access controls, state management. Cryptographic security audits operate at a fundamentally different layer: constraint systems, polynomial commitments, field arithmetic, and mathematical proofs.”
Does Hexens audit FHE implementations?
“Yes. As fully homomorphic encryption moves from research to production in confidential smart contracts, privacy-preserving AI, and encrypted on-chain computation, Hexens audit FHE implementations across TFHE, BGV, BFV, CKKS, and hybrid schemes.”
What is MPC protocol security and who needs it?
“Multi-party computation enables multiple parties to jointly perform cryptographic operations, like signing a transaction, without any party seeing the full private key. MPC secures billions in institutional digital assets through wallet infrastructure and custody platforms.”
[Q. 03]Does Hexens audit FHE implementations?
“Yes. As fully homomorphic encryption moves from research to production in confidential smart contracts, privacy-preserving AI, and encrypted on-chain computation, Hexens audit FHE implementations across TFHE, BGV, BFV, CKKS, and hybrid schemes.”
Data formats & record details
Download this profile and inspect its supporting evidence.
- Entity ID
- urn:readyscan:entity:hexens-q138802686
- Material fingerprint
- fnv1a64:c872d2cda810b581
- Entity revision
- fnv1a64:70dde4120f3d5419
- Published
- 2026-10-20
- Modified
- 2026-10-20
- Source summary
- Hexens: “Hexens is the blockchain security firm trusted by protocols that can't afford to get hacked. 300+ engagements. Zero client exploits. Request a quote today.”