A blog about blockchains and smart contracts development

Hey I'm Mark Muskardin, blockchain developer for Notional.Finance - a new DeFi application on Ethereum. I know how challenging it can be to learn Smart Contract programming with Solidity. Luckily, we have Ethernaut. A series of challenges that teach you Smart Contract security as you master Solidity. Get instant access to the private member's area of my FREE course "Smart Contract Security Fundamentals" by clicking here: https://security.6figureblockchaindeveloper.com/smart-contract-security-fundamentals You'll get step-by-step guidance on how to complete all of the Ethernaut challenges. And more importantly, you'll learn the top Smart Contract security hacks and attacks that you must know in order to become one of the world's first blockchain developers! Are you ready for the financial revolution? Let's go!

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A curated list of blockchain security Capture the Flag (CTF) competitions - blockthreat/blocksec-ctfs: A curated list of blockchain security Capture the Flag (CTF) competitions

Knowledge Base 慢雾安全团队知识库. Contribute to slowmist/Knowledge-Base development by creating an account on GitHub.

A collection of resources to study Solana smart contract security, auditing, and exploits. - 0xsanny/solsec: A collection of resources to study Solana smart contract security, auditing, and exploits.

I’ve recently swapped out playing CTFs in my free time to trying to catch bugs in my free time, usually for a bounty. Since bug bounty platforms are usually focused on web or mobile applications, I thought it might be interesting to introduce an emerging branch of bug bounty, focusing on smart contracts.

Examples of Solidity security issues. Contribute to crytic/not-so-smart-contracts development by creating an account on GitHub.

How does MEV occur, the types of MEV and the illusive Time-bandit attacks. This article is designed to explain MEV simply to the non-technical.

☢️#m0ham3dx - https://cutt.ly/mxTwitr~~~⚔️#web3sec 🔰#blockchainsecurity 🛡️#blocksec ⛓️#blockchain~~~👉This is a tutorial to demonstrate a forensic examina...

Code4rena has 123 repositories available. Follow their code on GitHub.

Comprehensive list of known attack vectors and common anti-patterns - GitHub - sigp/solidity-security-blog: Comprehensive list of known attack vectors and common anti-patterns

All my posts and videos sit here - https://www.dylandavis.net/

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JiuZhou is a data set of Ethereum bug smart contracts (ICSME 2020). - GitHub - xf97/JiuZhou: JiuZhou is a data set of Ethereum bug smart contracts (ICSME 2020).

A repository for Solidity smart contracts acting as security bug tests for static analysis tools. - nedasma/solidity-vuln-tests: A repository for Solidity smart contracts acting as security bug tes...

QuillAudits Smart Contracts, deFi, NFT, tokens, DApps Audit Reports - Quillhash/Audit_Reports: QuillAudits Smart Contracts, deFi, NFT, tokens, DApps Audit Reports

Join me on this journey from Web3 security n00b to slightly above n00b. This is part 1 of a multipart video series to document my public learning journey… Fi...

This guide focuses on showcasing the architecture, roles and subtleties of most popular price oracles in Ethereum, ways to safely integrate them with defensive programming practices.

Price oracles are one of the most critical pieces of infrastructure in DeFi. They come in different flavors, and inevitably carry associated security risks. In this session we’ll cover the most popular price oracles available in Ethereum, along with the security considerations you must bear in mind when integrating them into your project. In this workshop, we will cover: The need for price oracles in DeFi. Architecture of popular price oracles in space. Security risks associated with each price oracle. Must-have and nice-to-have safe guards when integrating price oracles. Led by Martin Abbatemarco, Security Researcher, OpenZeppelin Read the guidelines here: https://blog.openzeppelin.com/secure-smart-contract-guidelines-the-dangers-of-price-oracles/

A searchable curated repository of Web3 tools, ctfs, ,101s, vids and bounty programs brought to you buy https://twitter.com/web3sec

ConsenSys Diligence has helped a wide range of projects across the blockchain ecosystem to ensure their protocols are ready for launch and built to protect users.

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Stay up to date with the latest security insights on BitBlocksFinance: Smart Contract Audit, Skynet Scores, Security Oracle, CertiKShield and many more security-focused statistics.

“Some of my favorite Solidity Smart Contract Security resources 💚 #ethereum #blockchain #solidity #smartcontracts”

“Two roads diverged in a wood and I — I took the one less travelled by, and that has made all the difference”

A common attack in DeFi (as well as in traditional finance) is the sandwich attack. Upon observing a trade of asset X for asset Y, an…