In April 2018, someone transferred two extremely large amounts of BeautyChain (BEC) tokens by exploiting a vulnerability in the BEC smart contract. Let's explore what happened and why, and how to protect our smart contracts against this vulnerability.
What are numeric overflow vulnerabilities in programming languages and how do they affect Solidity-based smart contracts? Let's find out and dive into the root causes as well as prevention methods.
Let’s head to the lab to discover, debug, and fix this vulnerability within an actual application.
Defensive programming in Ethereum smart contracts is essential to address various vulnerabilities, old and new. Security should be built from the ground up instead of quick patches.
