# How Can a Protocol Use Slippage Tolerance Settings to Prevent Front-Running Attacks? ⎊ Path

**Published:** 2025-12-05
**Author:** Greeks.live
**Categories:** Path

---

## How Can a Protocol Use Slippage Tolerance Settings to Prevent Front-Running Attacks?

Users set a slippage tolerance (e.g. 0.5%) for their trade.

If the final executed price is worse than the initial price by more than this tolerance, the transaction is automatically reverted. Front-running bots attempt to insert a transaction before the user's to profit from the price change.

By setting a low tolerance, the user ensures that the front-runner's transaction will cause their own to revert, making the attack unprofitable.

- [What Is ‘Slippage Tolerance’ and How Does a Trader Use It to Mitigate Front-Running Risk?](https://learn.greeks.live/path/what-is-slippage-tolerance-and-how-does-a-trader-use-it-to-mitigate-front-running-risk/)

- [How Does the Concept of “Slippage Tolerance” Relate to Front-Running on AMMs?](https://learn.greeks.live/path/how-does-the-concept-of-slippage-tolerance-relate-to-front-running-on-amms/)

- [How Does Slippage Tolerance Setting Affect a User’s Vulnerability to a Sandwich Attack?](https://learn.greeks.live/path/how-does-slippage-tolerance-setting-affect-a-users-vulnerability-to-a-sandwich-attack/)

- [Can a Front-Runner Deliberately Cause a Transaction to Revert Using Slippage?](https://learn.greeks.live/path/can-a-front-runner-deliberately-cause-a-transaction-to-revert-using-slippage/)

- [What Is the Maximum Acceptable Slippage Setting for a Typical DeFi Trade?](https://learn.greeks.live/path/what-is-the-maximum-acceptable-slippage-setting-for-a-typical-defi-trade/)

- [How Can a User Protect Themselves from Sandwich Attacks Caused by High Slippage Tolerance?](https://learn.greeks.live/path/how-can-a-user-protect-themselves-from-sandwich-attacks-caused-by-high-slippage-tolerance/)

- [What Is the Concept of “Slippage Tolerance” in the Liquidation Process?](https://learn.greeks.live/path/what-is-the-concept-of-slippage-tolerance-in-the-liquidation-process/)

- [How Does a ‘Revert’ Transaction on a DEX Differ from a Simple Cancellation on a CEX?](https://learn.greeks.live/path/how-does-a-revert-transaction-on-a-dex-differ-from-a-simple-cancellation-on-a-cex/)

## Glossar

### [Low Slippage Tolerance](https://learn.greeks.live/area/low-slippage-tolerance/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)

Execution ⎊ Low slippage tolerance within cryptocurrency, options, and derivatives trading signifies a prioritization of order fulfillment at or near the anticipated price.

### [Slippage Tolerance Settings](https://learn.greeks.live/area/slippage-tolerance-settings/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)

Slippage ⎊ Within cryptocurrency derivatives and options trading, slippage represents the difference between the expected price of an order and the price at which it is ultimately executed.

### [Slippage Tolerance](https://learn.greeks.live/area/slippage-tolerance/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)

Mechanism ⎊ Slippage tolerance, within cryptocurrency, options, and derivatives trading, defines the maximum acceptable difference between the expected price of a trade and the price at which the trade is actually executed.

## Discover More

### [What Happens to a Transaction If the Price Movement Exceeds the Set Slippage Tolerance?](https://learn.greeks.live/path/what-happens-to-a-transaction-if-the-price-movement-exceeds-the-set-slippage-tolerance/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![What Happens to a Transaction If the Price Movement Exceeds the Set Slippage Tolerance?](https://learn.greeks.live/wp-content/uploads/2025/10/Dissecting-Actuator-Mechanism-Within-Decentralized-Exchange-Execution-Engine-Protocols.webp)

The smart contract will automatically revert the transaction, but the user will still lose the gas fee paid for the failed attempt.

### [How Do Electronic Communication Networks (ECNs) Prevent Front-Running in Traditional Options?](https://learn.greeks.live/path/how-do-electronic-communication-networks-ecns-prevent-front-running-in-traditional-options/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![How Do Electronic Communication Networks (ECNs) Prevent Front-Running in Traditional Options?](https://learn.greeks.live/wp-content/uploads/2025/10/Reflective-Quantum-Resonator-Assembly-Modeling-Decentralized-Autonomous-Organization-Governance-Mechanism.webp)

ECNs prevent front-running through strict, automated price-time priority matching and transparent display of the best available prices.

### [Can Flashbots Prevent All Forms of MEV, or Only Front-Running?](https://learn.greeks.live/path/can-flashbots-prevent-all-forms-of-mev-or-only-front-running/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![Can Flashbots Prevent All Forms of MEV, or Only Front-Running?](https://learn.greeks.live/wp-content/uploads/2025/10/Asymmetric-Intersection-of-Hardware-Wallet-Modules-Signaling-Decentralized-Exchange-Liquidity-Pools.webp)

Flashbots mitigates malicious MEV like front-running but facilitates beneficial MEV like arbitrage, redistributing the value.

### [What Is the "Best Execution" Obligation and How Does It Relate to Preventing Front-Running?](https://learn.greeks.live/path/what-is-the-best-execution-obligation-and-how-does-it-relate-to-preventing-front-running/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![What Is the "Best Execution" Obligation and How Does It Relate to Preventing Front-Running?](https://learn.greeks.live/wp-content/uploads/2025/10/Decentralized-Autonomous-Organization-Governance-Token-Structure-Encapsulating-Cross-Chain-Derivative-Swap-Execution.webp)

Best execution requires intermediaries to get the best possible terms for the client; front-running violates this by executing the client's trade at a worse price.

### [What Is the Purpose of Setting a "Maximum Slippage Tolerance" on a DEX Trade?](https://learn.greeks.live/path/what-is-the-purpose-of-setting-a-maximum-slippage-tolerance-on-a-dex-trade/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![What Is the Purpose of Setting a "Maximum Slippage Tolerance" on a DEX Trade?](https://learn.greeks.live/wp-content/uploads/2025/10/Cross-Sectional-View-of-Encapsulated-High-Frequency-Algorithmic-Trading-Execution-Vector-Within-A-Synthetic-Asset-Shell.webp)

Maximum slippage tolerance is a setting that cancels a DEX trade if the execution price is too far from the quoted price, protecting the trader from excessive price impact.

### [How Can Machine Learning Be Applied to Detect New, Evolving Forms of Front-Running?](https://learn.greeks.live/path/how-can-machine-learning-be-applied-to-detect-new-evolving-forms-of-front-running/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![How Can Machine Learning Be Applied to Detect New, Evolving Forms of Front-Running?](https://learn.greeks.live/wp-content/uploads/2025/10/Teal-and-Ivory-Casing-Interface-Analyzing-Hinge-Mechanism-Securing-Digital-Asset-Custody-Structures.webp)

ML detects known front-running patterns and, using unsupervised learning, identifies subtle, anomalous trading behavior that represents new forms of manipulation.

### [How Does Transaction Batching Help to Prevent Front-Running?](https://learn.greeks.live/path/how-does-transaction-batching-help-to-prevent-front-running/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![How Does Transaction Batching Help to Prevent Front-Running?](https://learn.greeks.live/wp-content/uploads/2025/10/Asymmetrical-Balance-of-Digital-Asset-Execution-Versus-Volatility-Surface-Contraction-in-DeFi-Protocols.webp)

Batching obscures individual trade details and executes multiple trades at a uniform price, removing the profit incentive for front-running.

### [What Is the Primary Function of a Matching Engine in a Crypto Exchange and How Can Its Design Prevent Front-Running?](https://learn.greeks.live/path/what-is-the-primary-function-of-a-matching-engine-in-a-crypto-exchange-and-how-can-its-design-prevent-front-running/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![What Is the Primary Function of a Matching Engine in a Crypto Exchange and How Can Its Design Prevent Front-Running?](https://learn.greeks.live/wp-content/uploads/2025/10/Conceptual-Visualization-of-Decentralized-Exchange-Automated-Market-Maker-Mechanism-Precision-and-Settlement-Finality.webp)

The matching engine executes trades; batch auctions in its design can prevent front-running by simultaneous order execution.

### [How Does a High Slippage Tolerance Enable "Slippage Exploitation" Attacks?](https://learn.greeks.live/path/how-does-a-high-slippage-tolerance-enable-slippage-exploitation-attacks/?utm_source=crypto.greeks.live&utm_medium=referral&utm_campaign=satellite)
![How Does a High Slippage Tolerance Enable "Slippage Exploitation" Attacks?](https://learn.greeks.live/wp-content/uploads/2025/10/Reflective-Substrate-Interaction-with-Magnetic-Coil-Assembly-Simulating-Decentralized-Exchange-Liquidity-Pools.webp)

High slippage tolerance guarantees the victim's trade will execute at a manipulated price, allowing the attacker to profit from the large price movement.

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