The number of smart contract applications deployed each day in the Ethereum Blockchain is increasing every day. Fascinated by the security aspect of the newly proposed Blockchain technology. More people are trying to deploy new smart contracts in the mainnet and most of them start holding millions of dollars in ...
The only things that truly do not change in a smart contract even with proxies concepts are state variables. However, not carefully using them in a smart contract could lead to some serious vulnerabilities. One of those vulnerabilities is called state variables shadowing. Therefore, what is smart contract shadowing state ...
Smart contract attacks usually exploit a vulnerability in a smart contract source code which leads to some serious financial losses. Therefore, ensuring that the smart contract is clean from any possible vulnerability before deploying it in the Mainnet is a must. So, how much does a smart contract audit cost? ...
One of the biggest myths that Blockchain technology has come with was that it is not vulnerable to DDOS attacks. This idea is totally wrong, even Blockchain technology is vulnerable to DDOS attacks, and not only one type of them. So, what is DDos attack in Blockchain? A DDoS attack ...
Making an audit against a smart contract is a great thing. However, finding vulnerabilities without fixing them is useless. Unfortunately, smart contracts are immutable by design, which means that once the smart contract is deployed, it cannot be changed. So how to fix a smart contract? To fix a vulnerable ...
To be able to perform the different tasks and execute the operations in its source code, smart contracts require a certain level of gas. This gas is paid by the user that tries to execute the smart contract using a transaction. However, when the user does not send enough gas ...
The transaction life cycle in most Blockchain technologies is mainly controlled by miners, even the order of the transactions. Therefore, when two users execute two different transactions at the same or closer time then only their gas fees will judge who will be executed first. This concept creates a vulnerability ...
In June 17, 2016 the most famous DAO platform developed by solidity language was victim to a big hack that make it lose more than 3.6 million Ether. The attacker has exploited a vulnerability called reentrancy in the smart contract that managed the platform. So what is a reentrancy attack ...
During the development of a smart contract, programmers may need to know the exact time to be able to execute some actions. Therefore, smart contract developers use what we call a timestamp offered by the node executing the smart contract. However, this may cause create multiple vulnerabilities that can cause ...
Undoubtedly, ChatGPT stands out as one of the most remarkable inventions of 2021. Its wide-ranging capabilities and applications have opened up endless possibilities for human interaction and problem-solving. Furthermore, certain users have begun employing ChatGPT for the actual execution of smart contract audits. However, can ChatGPT audit a smart contract? [...]
