# Tutorial 14: Slippage

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**Spotting Slippage Vulnerabilities in Smart Contracts: A Beginner's Guide**. Welcome to our easy-to-follow tutorial on identifying vulnerabilities related to slippage in smart contracts. Whether you're new to the world of blockchain, a seasoned developer, or someone who speaks English as a second language, this guide is crafted to make the concept of slippage both clear and actionable for you.
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The rise of decentralized finance (DeFi) has revolutionized how we think about financial transactions. Through DeFi, we're envisioning a world where exchanges and financial activities are open, transparent, and free from intermediaries. However, as with any technology, it comes with its unique challenges. One of the most talked-about issues in DeFi exchanges is 'slippage'.

But what exactly is slippage? At its core, slippage occurs when there's a difference between the expected price of a trade in a decentralized exchange and the price at which the trade is executed. This might sound simple, but unchecked or poorly managed slippage can be a gateway to significant vulnerabilities. It can mean users end up with unfair deals, and in some cases, it can be exploited by malicious actors.

Surprisingly, many smart contracts don't handle slippage issues adequately. Some might overlook it, while others might implement too strict or too lax measures. This is where the importance of our tutorial comes in.

Throughout this guide, we'll delve deep into how slippage can become a vulnerability in smart contracts. We'll break down its mechanics, demonstrate real-world examples, and provide you with the tools to spot and address these vulnerabilities effectively. By the end, our hope is that you'll be well-equipped to ensure the integrity and fairness of smart contract transactions.


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