Manojkumarpewbhai.hashnode.dev·18 hours ago21 Days of Solidity Smart Contract Security Research: Day - 2Hello All, Previously we saw what a smart contract is and why smart contracts need security research or auditing. Day 2 will discuss the Important terms and Fundamentals of Smart Contract Security Research. In this Journey, many newbies and sometime...DiscussEthereum
Manojkumarpewbhai.hashnode.dev·Sep 9, 202421 Days of Solidity Smart Contract Security Research: Day - 1Hello All, From today onwards, you can learn about smart contract security research. By the way, let's start from scratch about what smart contracts are and their importance in blockchain. What are Smart Contracts? Smart contracts are self-activated...Discuss·35 readsEthereum
RivanorthProblog.rivanorth.com·Sep 2, 2024Security Roundup: September 2024Welcome to the latest edition of our monthly security roundup where you find the most relevant Web3 security news all in one place. Get key insights into what happened and stay ahead of the curve! August 2024 Hacks Astroport - $6.4M - Reentrancy stri...DiscussWeb3Web3
Onu Daniel Onyebuchislowbugdev.hashnode.dev·Aug 13, 2024Deep Dive into Reentrancy AttacksReentrancy attacks have become one of the most exploited vulnerabilities in web3. These attacks exploit the recursive calling mechanisms in smart contracts thus aiding bad actors to repeatedly withdraw funds before the initial transaction is complete...Discussreentrancy attack
Nour Eldennour99.hashnode.dev·Jul 28, 2024SafeMath Library for Inline Assembly/Yul in Solidity Smart ContractsIntroduction After solving the Node Guardians Quest ‘Yul basics’, I've gained insights into writing assembly code for a SafeMath library. Since v0.8.0, Solidity supports overflow and underflow checks for arithmetic operations, but inline assembly doe...Discussinline-assembly
Nour Eldennour99.hashnode.dev·Jul 20, 2024Bypassing extcodesize(), Node Guardians CTFExplaining extcodesize() : extcodesize() is an opcode that retrieves the size of an account's code by checking the byte size of the address. It takes a 20-byte address and returns the byte size of the code. Example : InputOutput 0x43a61f3f4c73...DiscussSmart Contracts
WildFlower.Eth🌺wildflauwer.hashnode.dev·Jul 10, 2024Blockchain Glossary Every Smart Contract Developer Should KnowChatGPT Since the 2021 bull run, the blockchain industry has rapidly expanded with new technologies and solutions, each bringing its own terminology and concepts. As the industry evolves, it can be challenging to keep pace with everything that's happ...Discuss#blockchain #web3 #smartcontracts #blockchaindevelopment #layer1 #layer2 #zksync #rollups
Ashish Kumar Sahoogenashish.hashnode.dev·Jul 5, 2024Guide to Reentrancy Vulnerabilities in Solidity : Attack #02Introduction: A reentrancy attack is a type of vulnerability that can occur in a smart contract, where an attacker exploits the contract by repeatedly calling a function before the initial execution of that function is complete and the state of the c...DiscussSmart Contracts
Ashish Kumar Sahoogenashish.hashnode.dev·Jul 4, 2024Guide to Preventing Access Control Flaws in Solidity: Attack #01Introduction: What the heck is access control??? In software development, access control refers to the practice of granting users or administrators the ability to access certain functions or options and modify certain things based on predefined crite...Discuss·1 likeSolidity
Nour Eldennour99.hashnode.dev·Jun 26, 2024My Findings For First Flight #17: DussehraIntroduction: The First Flight #17: Dussehra contest on CodeHawks uncovered critical security vulnerabilities in the ChoosingRam contract. Our analysis revealed issues such as predictable randomness and lack of access control, which threaten the inte...DiscussSecurity
