Nov 25, 2021
Through the technique described in the previous article, it is explained how to obtain an operationally identical Smart Contract written…
Detailed explanation of Ethereum smart contract vulnerabilities, Welcome to follow us and discuss
How you could easily upgrading your smart contracts & how it work!
Let’s write a vulnerable smart contract code, see how attacks work, and understand the preventing techniques to fix it
Sep 16, 2021
Recently I took a deep dive into the Crypto World. Especially on DeFi and Smart Contracts. So I did what probably every other developer…
Aug 29, 2021
It’s quite straightforward to send ETH from your Metamask wallet to your smart contract on the Ethereum Mainnnet or the Kovan testnet. I’ve…
This article is gonna be a short one.
Before adding the transactions to the block, there is something called a transaction pool(mempool) wherein all the transactions reside, the…
Dec 28, 2021
TLDR; the new keyword in solidity allows to create and deploy a new contract instance using a template. ‘SomethingSomethingFactory’ is a…
The web3 space is pretty new and evolving, and most of the users are very negligent. They do not research the project and just dive in with…
Decentralized Applications (dapps)are becoming very popular recently with plenty of developers implementing most of them using the solidity…
Nov 24, 2021
To complete this challenge, you need to understand what delegation in solidity means. Suppose there are two smart contract X and Y. A…
Apr 1, 2018
A transaction origin attack is form of phising attack that can drain a contract of all funds.
How to sign a message with a wallet and verify the signature on-chain using ecrecover
What is delegatecall?
In this Hack, we are going to learn — how to perform a Denial of Service attack on a smart contract. The basic idea behind the hack is to…
tx.origin vs msg.sender
Dec 11, 2021
I found this challenge to be pretty interesting and learnt things which I was previously unaware of. To understand better, lets understand…
Let's explore what happens if state variables are declared in the wrong order or by the wrong data type in the contract.
A Software Developer | Data Science • Blockchain • Bots • Android | C++ • Python • Java
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