Slippage protection is a feature that find the best routes for decentralised exchanges avoding slippage and MEV attack.
Slippage refers to the difference between the expected price of a trade and the actual executed price of the trade. This slippage is de facto a hidden price impact that users may experience when trading.
A MEV (Miner Extractable Value) attack refers to a type of attack where miners or other participants in a blockchain network attempt to exploit their privileged position to extract additional value from transactions or smart contracts. MEV attacks take advantage of the order and execution of transactions in a blockchain to gain economic benefits.
The protocol 0X make meaningful efforts to protect you for unexpected fees.