# Smart contract

**Published by:** [MOgenl](https://paragraph.com/@888up/)
**Published on:** 2022-08-06
**URL:** https://paragraph.com/@888up/smart-contract

## Content

We have mentioned smart contracts many times, because without them there would be no DeFi, and the importance cannot be overstated. The code in smart contracts can determine exactly how dApps and other blockchain protocols work. Unlike traditional contracts, once these contracts are written and published, they cannot be changed. Errors in smart contracts can make them vulnerable to hackers, which is why most legitimate projects are subject to rigorous vetting before they are launched.

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