โŒจ๏ธTutorial 62: Typos in Smart Contracts โ€” The Silent Threat Leading to Interface Mismatch

Smart contracts are immutable, decentralized, and highly secure, but they also come with one significant limitation: once deployed, they cannot be modified. This makes even the smallest mistakesโ€”like typosโ€”highly impactful. In decentralized applications (dApps) and blockchain protocols, a simple typo can cause interface mismatches, making contracts impossible to call or interact with. In some cases, this can lock funds, break functionality, or leave vulnerabilities that can be exploited.

In this tutorial, we will explore how typos in smart contracts, especially in function names, variable names, or data types, can lead to interface mismatches and critical errors. We will also provide examples, how to prevent such issues, and tools to mitigate the risk.

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