In every programming language, we usually face security issues. With smart contract languages, the risks and consequences are higher, because we have to transfer large sums. Following my research, I will content myself with exposing the vulnerabilities and the solutions proposed by the Web3 community. In the next few days, I will start learning Solidity and when I come across these vulnerabilities, I will update this article with update tag after every attacks title.

• Reentrancy Attacks

• Frontrunning

• Integer Overflow & Underflow

• Cross-function Race Conditions

• Timestamp Dependence

• DoS with Block Gas Limit

• Forcibly Sending Ether to a Contract