Crypto Classroom 📚 Smart Contract Risks
In 2016, The DAO was attacked through a reentrancy vulnerability. Ethereum responded with a hard fork, while the unforked original chain continued as Ethereum Classic (ETC).
Common vulnerability types include reentrancy, oracle manipulation, access-control oversights, and cross-chain bridge validation flaws.
At first, I thought knowing how to read candlestick charts would be enough, but it turned out the rules were the first lesson.
The Ethereum network associated with $ETH is one of the earliest public blockchains to support general-purpose smart contracts.

This information has been compiled from public sources; refer to the original text.