# MEV protection

## What is an MEV attack?

**MEV attacks** often target pending transactions in the **mempool**, a pool of unconfirmed transactions. Attackers monitor the mempool for opportunities, such as users buying or selling assets at favorable prices. They then strategically place their own transactions before and after the target transaction, creating a "sandwich" that can manipulate the price and profit the attacker at the expense of the user.

## What is MEV protection?

**MEV protection** can work by bypassing the mempool and submitting transactions directly to **block builders**. Block builders are entities that create blocks for inclusion in the blockchain. By submitting directly to a block builder, users can avoid the risk of their transactions being sandwiched by other transactions in the mempool. 

## How to turn on MEV protection on Nest Wallet

### Ethereum

Good news, there is nothing you need to do. Nest Wallet uses [Flashbots](https://www.flashbots.net/) to automatically provide MEV protection on all Ethereum based trades done within the app, at no cost to the users.

### Solana

We have partnered with [Jito](https://www.jito.wtf/) to hide user's trades from potential MEV attackers.

To turn on MEV protection:

* Find a token you want to trade and set the amount you want to buy and sell

<figure><img src="https://content.gitbook.com/content/UyxSoBO0gbgmuNw33ihH/blobs/2RHH8xTyU4rgOT7ObZc0/image.png" alt="" width="188"><figcaption></figcaption></figure>

* Click on MEV Protection and set your Jito tip amount. The higher the tip the quicker the inclusion

<figure><img src="https://content.gitbook.com/content/UyxSoBO0gbgmuNw33ihH/blobs/7Ec2WrEbfVmmCsdOaFLI/image.png" alt="" width="188"><figcaption></figcaption></figure>

* Click confirm and you're **all set!** Nest Wallet will remember your settings for all subsequent trades