We architect, develop, and deploy custom smart contracts that are secure by design and gas-optimized. Our process delivers contracts you can trust for high-value transactions.
LABS
Services
StarkNet Cairo Mobile Browser Audit
Security-focused auditing and performance review of mobile DApp browsers built for StarkNet, ensuring safe interaction with Cairo smart contracts and ZK-rollup infrastructure.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific Web3 use case.
- Audit-Ready Code: Built with
Solidity 0.8+andOpenZeppelinlibraries, following established security patterns. - Gas Efficiency: Every contract is optimized for lower transaction costs and faster execution.
- Full Lifecycle Support: From initial design and testing to deployment on
EVMchains and ongoing maintenance.
We deliver battle-tested contracts that power DeFi protocols, NFT collections, and enterprise applications with 99.9% uptime SLAs.
key-features-cards
COMPREHENSIVE SECURITY REVIEW
What Our Audit Covers
Our specialized audit for StarkNet Cairo mobile browser applications delivers a multi-layered security assessment designed to protect user assets and ensure protocol integrity before mainnet deployment.
01
Smart Contract & Cairo Code Review
In-depth analysis of your Cairo 1.0 smart contracts and application logic for vulnerabilities like reentrancy, arithmetic overflows, and access control flaws. We verify adherence to StarkNet's security best practices and the OpenZeppelin Cairo library standards.
100%
Code Coverage
OWASP Top 10
Vulnerability Check
02
Browser Integration & Wallet Security
Security assessment of the dApp's interaction with mobile browsers (Chrome, Safari) and wallets (Argent, Braavos). We test for injection attacks, insecure message passing, and transaction signing vulnerabilities specific to the mobile environment.
Mobile-Specific
Threat Vectors
Wallet SDKs
Integration Tested
03
Cryptographic Implementation Audit
Verification of all cryptographic operations, including signature validation (ECDSA, Pedersen), hash function usage, and STARK proof integration. We ensure the mathematical soundness of your zero-knowledge application components.
Zero-Knowledge
Proof Systems
NIST-Compliant
Standards
04
Frontend & API Security Analysis
Review of the React/Next.js frontend and any backend APIs for common web vulnerabilities (XSS, CSRF) and data leakage risks. We ensure secure communication with the StarkNet sequencer and indexers.
API Endpoints
Secured
OAuth2/SSL
Protocols Enforced
05
Gas Optimization & Performance Review
Analysis of L1→L2 messaging costs, storage variable usage, and contract deployment efficiency. We provide actionable recommendations to reduce user transaction fees by up to 40% and improve application responsiveness.
≤ 40%
Fee Reduction
L1-L2 Messaging
Optimized
06
Final Report & Remediation Support
Receive a detailed technical report with CVSS-scored findings, proof-of-concept exploits, and prioritized fixes. Our team provides direct support to guide your developers through the remediation process, ensuring all critical issues are resolved.
CVSS v3.1
Scoring
Remediation Support
Included
benefits
UNIQUE CHALLENGES
Why a Specialized Mobile Browser Audit Matters
Mobile browsers introduce distinct attack vectors and performance constraints that generic smart contract audits miss. A specialized StarkNet Cairo Mobile Browser Audit ensures your dApp is secure, compliant, and delivers a seamless user experience on any device.
01
Mobile-Specific Attack Surface Analysis
We audit for vulnerabilities unique to mobile environments, including insecure storage, session hijacking, and malicious browser extensions. Our review covers wallet injection, phishing simulations, and mobile API security to protect user assets.
50+
Mobile-Specific Vectors
OWASP MASVS
Compliance
02
Cairo 1.0 & StarkNet Protocol Expertise
Our auditors are certified in Cairo 1.0 and deeply understand StarkNet's L2 architecture. We verify proof systems, sequencer interactions, and state transitions for mobile clients, ensuring protocol-level correctness.
Cairo 1.0
Language Focus
L2 State Proofs
Core Audit
03
Performance & Gas Optimization for Mobile
We identify and remediate Cairo code patterns that cause high L1 gas fees or slow mobile transaction signing. Optimizations target compute steps, storage writes, and data availability for cost-effective mobile usage.
Up to 40%
Gas Reduction
< 3 sec
Target TX Time
04
Regulatory & Compliance Readiness
Our audit includes checks for financial compliance (Travel Rule, Sanctions), data privacy (GDPR, CCPA in mobile contexts), and app store guidelines. We provide actionable reports for legal and regulatory reviews.
GDPR/CCPA
Privacy Frameworks
App Store
Guideline Review
05
Real-World Simulation & Testing
We deploy your Cairo contracts to a testnet and execute attacks from simulated mobile devices (iOS/Android). Testing includes network switching, low-bandwidth conditions, and wallet disconnections.
iOS & Android
Device Coverage
Testnet
Live Simulation
06
Post-Audit Support & Monitoring
Receive 30 days of critical issue consultation and a security monitor setup for your mainnet deployment. We provide alerts for anomalous mobile transaction patterns and potential exploit attempts.
30 Days
Critical Support
24/7
Monitor Alerts
Comprehensive Security Assessment
StarkNet Cairo Mobile Browser Audit: Scope & Deliverables
Our tiered audit packages provide structured security validation for your StarkNet Cairo-based mobile browser project, from foundational code review to ongoing protection.
| Audit Component | Code Review | Full Audit | Enterprise Suite |
|---|---|---|---|
Cairo Smart Contract Security Review | |||
Browser Extension Wallet Integration | |||
Mobile-Specific Vulnerability Testing | |||
Formal Verification Report | |||
Automated & Manual Testing | Automated only | Full suite | Full suite |
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Final Security Score & Certificate | |||
Priority Response Time | 72h | 24h | 4h |
Post-Audit Consultation | 1 session | Ongoing | |
Typical Timeline | 1-2 weeks | 3-4 weeks | 4-6 weeks |
Starting Investment | $8K | $25K | Custom |
approach
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
We architect and deploy custom smart contracts that form the secure foundation of your dApp. Our development process ensures gas-optimized, auditable code from day one, reducing deployment risk and long-term maintenance costs.
From initial concept to mainnet launch, we manage the full lifecycle with a focus on security and scalability.
Key Deliverables:
- Custom logic for DeFi, NFTs, DAOs, and enterprise applications.
- Comprehensive audits using industry-standard tools like Slither and MythX.
- Full test suite with 95%+ coverage for
SolidityandVypercontracts. - Gas optimization reports to minimize user transaction fees.
- Deployment & verification on
EVM-compatible chains (Ethereum, Polygon, Arbitrum).
Our Expertise:
- Security-First Development: Adherence to
OpenZeppelinstandards and formal verification practices. - Rapid Prototyping: Functional MVP delivery in 2-3 weeks.
- Post-Launch Support: Upgradeability patterns and monitoring for live contracts.
Smart Contract Security Analysis
Build vs. Buy: In-House Review vs. Chainscore Audit
A direct comparison of the time, cost, and risk profile of conducting a security review internally versus engaging Chainscore Labs for a professional StarkNet Cairo audit.
| Security Factor | In-House Code Review | Chainscore Professional Audit |
|---|---|---|
Time to Completion | 4-8 weeks (with senior dev) | 2-3 weeks (fixed timeline) |
Initial Security Coverage | Medium (limited by team expertise) | High (comprehensive, protocol-specific) |
Average Critical Bugs Found | 1-3 (varies widely) | 5-10+ (systematic approach) |
Auditor Expertise | General Solidity/Cairo | Specialized StarkNet & Cairo 1.0 |
Formal Verification | ||
Gas Optimization Report | ||
Remediation Support | Internal only | Guidance & re-audit of fixes |
Audit Report Quality | Internal notes | VC-ready, public-ready PDF |
Total Project Cost | $40K-$80K (engineering time) | $15K-$50K (fixed fee) |
Post-Audit Liability | Your team bears full risk | Professional indemnity & reputation |
StarkNet Cairo Mobile Browser Audit
Frequently Asked Questions
Get clear answers on our specialized security audit process for mobile browser-based StarkNet applications.
A standard audit for a mobile browser dApp takes 2-3 weeks from kickoff to final report. This includes a 1-week scoping and preparation phase, followed by a 1-2 week intensive review of the Cairo smart contracts, frontend integration, and mobile-specific security vectors. Complex protocols with novel cryptographic components may require additional time, which we outline during the initial assessment.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall