Security Audit Services
Solidity Audits
Line-by-line manual review of EVM smart contracts with automated analysis
Rust & Solana Audits
Account validation, CPI safety, and program logic review for Rust-based chains
DeFi Security
Economic attack modeling, oracle analysis, and governance review for DeFi protocols
Formal Verification
Mathematical proof that critical contract properties hold under all inputs
Bridge Audits
Multi-chain validation, message verification, and asset custody review
L1 Chain Audits
Consensus, runtime, and economic security review for Layer 1 and appchain protocols
dApp Audits
End-to-end review of dApp contracts, integrations, and on-chain interaction logic
Pen Testing
Adversarial attack simulations against your full Web3 infrastructure
Incident Response
Emergency exploit analysis, fund tracing, and security hardening
Augmented by Sentinel
Our auditors are backed by Sentinel, an internal AI engine we built to extend coverage beyond what manual review alone can reach. It handles automated scanning and analysis at scale, so our team can focus on the vulnerabilities that require human judgement.
Turnaround
12–24h
Initial findings on most codebases. Sentinel runs scale coverage while our auditors focus on the bugs that need human judgement.
Recon
Codebase ingestion and scope analysis
Automated Sweep
Static analysis and fuzzing
Agentic Analysis
AI-driven threat review
Cross-Examination
Findings challenged and stress-tested
Triage
Findings deduplicated, ranked, and filtered for noise
Report
Severity ratings and remediation
Monitored by Tripwire
Audits are point-in-time. Threats are continuous. Tripwire monitors your deployed contracts 24/7, detecting governance attacks, oracle manipulation, abnormal fund flows, and contract upgrades, alerting you in real time.
Reaction
< 30s
From on-chain signal to automated runbook execution. Pre-approved actions trigger before exploit windows close.
Real-Time Detection
On-chain pattern monitoring catches threats as they emerge
Multi-Channel Alerts
Slack, Telegram, and email. Your team knows in seconds
Automated Response
Pre-approved runbooks that execute within seconds of detection
Custom Deployment
Tuned to your contracts, parameters, and risk thresholds
Audit-Informed Rules
Monitoring seeded from SigIntZero audit findings
Our Auditors
Alex Rybalko
Co-Founder & CEO
Co-Founder of SigIntZero. Security architecture and threat modeling for protocols and distributed systems.
Aron Turner
Co-Founder & CTO
CTO of SigIntZero. Engineering leadership, infrastructure architecture, and security tooling.
Dmitry Serdyuk
Co-Founder & CDO
Full-Stack Operator | Building across security, AI, and digital infrastructure.
Kolin Cunningham
Head of Business Development
BD at SigIntZero. Partnerships and go-to-market for Web3 security services.
Security Research
Coldcard's $88.6M Entropy Failure: Five Years of Guessable Bitcoin Seeds
A March 2021 build error routed Coldcard seed generation to a software PRNG instead of the hardware RNG. Five years later, attackers swept 1,367 BTC from 4,585 addresses without touching a device.
Triple-A's $11.8M Hot Wallet Drain: Seven Chains, and 31 Hours Nobody Closed the Tap
Triple-A's treasury wallets were swept across seven chains starting July 24, 2026. The theft took hours. Deposits kept arriving and kept being swept for 31.
B2 Network $3.86M Staking Drain: The Upgrade Key Did All the Work
B2 Network lost 8.59M B2 tokens, about $3.86M, when someone used the staking contract's upgrade authority. That privilege had sat on the same wallet since 2025.
Frequently Asked Questions
Get in Touch
Ready to secure your codebase? Send us a message and we'll get back to you within one business day.
Or reach us directly at:
contact@sigintzero.com