Application & Network Security
The largest blockchain exploits in history didn’t start on-chain. We test the surface most firms don’t.
One operation. Full surface. Run by the engineers who break L1 protocols and ZK circuits between client engagements. Web, mobile, APIs, cloud, network — and the people and processes operating them. We test the way an attacker would, with tooling no pentest vendor sells.
[INFRASTRUCTURE]
[Fig. 01]
TEAM
Senior Researchers. Every Engagement.
Hexens security researchers are CTF champions, bug bounty leaderboard veterans, and engineers who’ve spent careers breaking systems that weren’t supposed to break.
No junior bench, no rotation, no learning on your codebase.
Credentials earned, not collected.
TOOLING
Security Engineers X Frontier AI
Rigorous, line-by-line review — extended by frontier AI as a force multiplier. The engineer brings the judgment. The model removes the ceiling on what that judgment can reach.
Deeper analysis of individual findings.
More adversarial test cases per surface.
Broader code path exploration.
METHOD
Two Independent Teams. In Parallel.
Two senior security teams run against the same target in parallel, pairing manual review with frontier AI as a force multiplier. Where findings overlap, you have confirmation. Where they diverge, you’ve caught what a single-team audit would have missed.
Beyond scope by default.
Engagements are exclusive.
Retesting, included.
OUTCOME
Findings that hold up to a post-mortem.
The audits that matter are the ones still defensible after something goes wrong. None of ours have been tested that way.
- $120 BLN+In digital assets protected
- Zeropost-audit exploits across 300+ engagements
- 91%client retention rate
- 90%of reports contain critical or high-severity findings
Coverage that neither security engineers nor frontier AI could deliver alone.
APT Simulation and Red Teaming
Full-scope adversarial simulation replicating the tactics, techniques, and procedures of advanced persistent threat actors targeting your organization. We chain reconnaissance, initial access, lateral movement, privilege escalation, and data exfiltration into multi-stage attack campaigns that test your detection and response capabilities across the entire kill chain - not just individual controls. AI-augmented adversary simulation enables broader attack path exploration and faster identification of chained exploitation routes that cross network, application, and cloud boundaries.
Previous engagements have surfaced vectors that could have led to the compromise of hundreds of millions of dollars' worth of infrastructure.
Hexens uses all of the frontier tools and techniques, including private, not publicly available ones, to simulate the real APT.
Web Application Penetration Testing
Full-scope offensive security assessment of web applications - authentication, authorization, session management, input validation, business logic, and blockchain-specific interaction layers. Our engineers use AI-augmented reconnaissance and test generation to go far beyond OWASP Top 10, testing for attack vectors specific to dApp frontends, wallet connection flows, and on-chain/off-chain data handling - covering more attack paths in less time without sacrificing depth on the findings that matter.
Mobile Application Security Assessment
Security testing of iOS and Android applications - reverse engineering, runtime analysis, local data storage, network communication, API interaction, and blockchain wallet integration points. We assess both native and React Native implementations, covering the full mobile attack surface from client-side vulnerabilities to backend integration risks. AI-augmented analysis accelerates reverse engineering and identifies data flow patterns across complex mobile architectures.
Source Code Review
Manual security review of application source code - identifying vulnerabilities that automated scanners miss, including business logic flaws, race conditions, cryptographic implementations misuse, and access control gaps. Our engineers direct frontier AI models to reason about code in context - tracing data flows across modules, identifying non-obvious interaction patterns, and generating adversarial inputs that test the boundary conditions scanners have no rules for. We review code in the context of your full system architecture, not as isolated functions.
API Security Testing
Assessment of API endpoints - authentication mechanisms, rate limiting, input validation, data exposure, and business logic vulnerabilities. For blockchain applications, we specifically test API interactions with on-chain components, wallet services, and third-party integrations. AI-augmented testing enables comprehensive coverage of API surface areas that would take significantly longer to map and test manually.
Cloud Infrastructure Security Audit
Security assessment of cloud environments - AWS, GCP, Azure configuration review, IAM policy analysis, network segmentation, secrets management, logging and monitoring, and container security. We evaluate your infrastructure against both cloud provider best practices and blockchain-specific operational requirements like validator node security, key management, and hot wallet infrastructure. Frontier AI models accelerate configuration analysis across complex multi-account, multi-region deployments.
Network Penetration Testing
External and internal network penetration testing - scanning, enumeration, exploitation, lateral movement, and privilege escalation. We simulate real adversarial behavior against your network infrastructure, identifying paths an attacker could use to reach critical blockchain systems from initial access. AI-augmented reconnaissance and exploitation enable broader coverage and faster identification of chained attack paths that cross network segments.
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[Fig. 02]
