Smart Contract Security

Start your career as a smart contract security researcher! Learn smart contract auditing and the best practices for writing secure and optimized protocols. Explore fuzzing, invariant testing, and formal verification to identify bugs and protect web3 protocols.

Smart Contract Security

24hrs

272 lessons

6 projects

20+ languages

Advanced

Start learning now
Avatar 4Avatar 1Avatar 6Avatar 8Avatar 9
500+ students enrolled

What you'll learn

This course will help you learn:

Smart contract invariants testing

Smart contract fuzz testing

Stateless and stateful fuzzing tools

Upgradeable smart contracts

Smart contracts auditing

Cyfrin Aderyn

Manual review

Syllabus

Course description

Become a smart contract security auditor and learn one of the most in-demand skills in web3!

If you’re a Solidity smart contract developer, a seasoned developer, or a security researcher, this course will teach you everything you need to know to get started auditing and writing secure protocols.

With over 100 lectures and more than 24 hours of videos and real-world auditing experience, this comprehensive course will give you the skills to kickstart your Solidity smart contract security auditing career.

We cover a wide variety of topics, including:

  • Smart contract invariants testing
  • Smart contract fuzz testing
  • Stateless and stateful fuzzing tools
  • Upgradeable smart contracts
  • Smart contracts auditing
  • Cyfrin Aderyn
  • Manual review
  • Smart contracts testing

Project-based, the Smart contract auditing and security course include quizzes, tests, exercises, and assignments and 5 hands-on step-by-step audits performed on real-world mock smart contracts.

We'll take you step-by-step through engaging video tutorials and written lessons to teach you everything you need to know to succeed as a Blockchain security researcher. Here's why:

  • The world’s leading smart contract security auditors teach the course with guests from top web3 auditing firms.
  • Continuously updated to teach you the latest tools and technologies used at large companies and protocols.
  • We've taught over 10,000 students how to audit and write secure solidity smart contracts.
  • The curriculum was developed over a period of 1 year, with comprehensive student testing, feedback, and reviews.
  • You'll save over $5,000 by enrolling and getting access to the industry smart contract security learning material.
  • The course is constantly updated with new content, projects, and modules!

This course will teach you solidity smart contract security auditing practically. Every lecture has a full coding screencast, step-by-step audit processes, and written lessons to learn how it fits you best!

By the end of this course, you will be ready to become a Solidity smart contract auditor and get lifetime access to over 100 lectures, corresponding resources, and repositories.

So what are you waiting for? Learn a Solidity smart contract auditing completely for free!

Meet your instructors

Patrick Collins

Patrick Collins

Founder at Cyfrin

Web3 engineer, educator, and Cyfrin co-founder. Patrick's smart contract development and security courses have helped hundreds of thousands of engineers kickstarting their careers into web3.

Tincho Abbate

Tincho Abbate

Ethereum Security at The Red Guild

Ethereum security researcher at The Red Guild, former lead security auditor at OpenZeppelin, and app pentester.

Josselin Feist

Josselin Feist

Head of Blockchain at Trail of Bits

Owen  Thurm

Owen Thurm

Founder and Lead Auditor at Guardian Audits

Andy Li

Andy Li

Security engineer at Sigma Prime

Johnny Time

Johnny Time

Founder at Gingersec

Pashov

Pashov

Founder at Pashov Audit Group

Juliette Chevalier

Juliette Chevalier

Lead Developer relations at Aragon

Alex Roan

Alex Roan

Founder at Cyfrin

Related resources

View all
Smart Contract Security Auditor thumbnail

Become a Solidity smart contract security auditor. Learn to identify vulnerabilities, conduct comprehensive audits, formal verification, and secure blockchain systems.

Blockchain Basics thumbnail

Solidity Developer

Beginner

Blockchain Basics

Introductory blockchain developer course. Learn how blockchains and smart contracts work, create a wallet, and sign your first blockchain transaction.

Web3 Wallet Security Basics thumbnail

Solidity Developer

Beginner

Web3 Wallet Security Basics

Web3 Wallet Security Basics teaches you the foundational concepts of blockchain wallet security and transaction verification to help you avoid disaster. This is an introductory, 1-hour course designed specifically for users in the EVM ecosystem who want to understand how to safely interact with smart contracts and verify transactions before signing them.

Solidity Smart Contract Development thumbnail

Solidity Developer

Beginner

Solidity Smart Contract Development

Solidity Programming is your door to web3 development in Ethereum compatible ecosystems. Learn to build dApps and deploy smart contracts, Learn Solidity today!

Chainlink Fundamentals thumbnail

Solidity Developer

Beginner

Chainlink Fundamentals

Learn how to use Chainlink's decentralized Oracle network to connect smart contracts with real-world data. Integrate Chainlink's tools and APIs for secure off-chain interactions.

Full-Stack Web3 Development Crash Course thumbnail

Solidity Developer

Intermediate

Full-Stack Web3 Development Crash Course

Master full-stack web3 development with our comprehensive course. Learn to build blockchain-powered apps, connect wallets, and implement smart contracts.

Foundry Fundamentals thumbnail

Solidity Developer

Intermediate

Foundry Fundamentals

Level up your Solidity skills with Foundry. Learn advanced web3 development, teaching Foundry Forge, Anvil, Chainlink oracles, smart contract testing, and local deployment.

Assembly and Formal Verification thumbnail

Solidity Developer

Advanced

Assembly and Formal Verification

Take the next step in your Solidity development journey and learn exactly how the Solidity compiler and opcodes work. Write contracts using Assembly and Yul, then learn how to write formal verification tests to guarantee your invariants hold.

Advanced Foundry thumbnail

Solidity Developer

Advanced

Advanced Foundry

Master web3 development with Advanced Foundry for Solidity smart contracts. Learn to write, test, and deploy contracts using industry-standard tools.