Can a ‘Private Transaction Relay’ Prevent a Sandwich Attack?
Yes, a private transaction relay, like those offered by Flashbots, can effectively prevent sandwich attacks. By submitting a transaction directly to a block builder or validator without passing through the public mempool, the pending trade is hidden from searchers looking to front-run or sandwich.
The transaction is only revealed when it is included in a block, eliminating the opportunity for pre-emptive trades.
Glossar
Private Transaction
Privacy ⎊ A Private Transaction is a cryptographic operation submitted directly to a block builder or validator, bypassing the public mempool where pending transactions are typically exposed to all network participants.
Relay
Mechanism ⎊ Within cryptocurrency derivatives and options trading, a Relay functions as a programmatic bridge facilitating the transfer of assets or data between disparate blockchain networks or systems.