Cairo Security Unlocked

Free Course • 9 Modules • Intermediate • Laurence Kirk

Master security in the Cairo ecosystem and Starknet development. From zero-knowledge protocol fundamentals to advanced auditing techniques and real-world vulnerability analysis.

Master Cairo Security and Starknet Auditing

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About This Course

Welcome to Cairo Security Unlocked — your comprehensive guide to mastering security in the Cairo ecosystem and Starknet development. This course takes you from zero-knowledge protocol fundamentals to advanced auditing techniques, covering everything from Cairo language specifics to real-world vulnerability analysis.

Whether you're a developer building on Starknet, an auditor expanding your expertise, or a security researcher exploring zero-knowledge systems, you'll gain the practical skills and deep understanding needed to secure Cairo-based applications and identify critical vulnerabilities.

What You'll Learn

Master Cairo language security fundamentals
Understand Starknet architecture and L1/L2 interactions
Identify and prevent Cairo-specific vulnerabilities
Learn professional auditing methodologies
Analyze real-world audit reports and case studies
Use Cairo security tools and testing frameworks

Course Modules

#	Module	Description
1	Introduction	Course overview and security fundamentals for zero-knowledge systems
2	Cairo Language Fundamentals	Master Cairo's unique features: ownership, traits, references, and key differences from Solidity
-	Starklings Side-Quest	Optional beginner-friendly Cairo tutorials covering variables, types, and felt operations
3	Starknet Architecture	Deep dive into Layer 2 architecture, Starknet components, and L1/L2 interactions
4	Contract Structure	Anatomy of Cairo contracts, storage patterns, OpenZeppelin integration, and build tools
5	Vulnerability Analysis	Comprehensive coverage of smart contract, Cairo-specific, and Starknet vulnerabilities
6	Security Tools	Overview of Cairo development tools, auditing frameworks, and security analysis tooling
7	Testing Techniques	Advanced testing strategies including unit tests, fuzz testing, and fork testing with Foundry
8	General Auditing	Professional auditing processes, cost estimation, and severity categorization
9	Audit Report Analysis	Real-world case studies covering access control, reentrancy, and sandwich attack vulnerabilities

Resources

Cairo Development Tools

Cairo Compiler: Scarb, Cairo language server
Testing Frameworks: Cairo Test, Foundry for Starknet
IDEs & Extensions: VSCode Cairo extension, Vim Cairo syntax

Starknet Ecosystem

Network Tools: Starknet CLI, Starknet.js, Starknet.py
Block Explorers: StarkScan, Voyager
Development Networks: Starknet Goerli, Starknet Sepolia

Security & Auditing

Static Analysis: Cairo security analyzers, linting tools
Audit Reports: Public Starknet audit reports and case studies
Vulnerability Databases: Cairo-specific CVEs and security advisories

Documentation & Learning

Official Docs: Cairo Book, Starknet documentation
OpenZeppelin: Cairo contracts library and security guides
Community: Starknet Discord, Cairo GitHub discussions

Community & Support

Extropy Discord: Get updates & ask questions
Starknet Community: Official Discord, developer forums

Who This Is For

This course is designed for developers, auditors, and security professionals working in the Cairo and Starknet ecosystem.

Whether you're a smart contract developer, security researcher, protocol engineer, or auditor, you'll find practical, hands-on guidance for securing Cairo applications.

Perfect for those who want to:

Developers building dApps on Starknet who need to understand security best practices
Security auditors expanding their expertise to include Cairo and zero-knowledge systems
Protocol engineers working on Starknet infrastructure and L2 solutions
Researchers exploring zero-knowledge proof security and Cairo language vulnerabilities
Anyone curious about the intersection of ZK technology and smart contract security

Master Cairo Security and Starknet Auditing

Start Learning for Free