The Solana Foundation has taken action against a group of validator operators involved in sandwich attacks, removing them from its delegation program.
What Are Sandwich Attacks?
A sandwich attack occurs when a malicious trader manipulates transactions to ensure that retail investors get the worst possible price. This is done by placing one order before a pending transaction and another immediately after. The attacker positions the pending transaction between these two orders, manipulating the asset’s price to profit from the difference.
Identifying Malicious Validators
These malicious validators were identified through their participation in mempools, which facilitate sandwich attacks. According to the Solana Foundation’s rules, validators engaging in malicious activities are prohibited. As a result, the identified validators will no longer be assigned any delegation work.
Official Announcement
Tim Garcia, Solana’s validator relations lead, announced the removal of these validators on Discord. He emphasized that the Solana Foundation will not tolerate any malicious activities, including participation in private mempools for sandwich attacks or any actions that harm Solana users. Garcia stated:
“Anyone found engaging in such activity will be rejected from the program, and any stake from the Foundation will be immediately and permanently removed.”
Solana Foundation Delegation Program
The Solana Foundation Delegation Program was established to help validators by assigning them Solana tokens, relieving them of the burden of holding a large number of tokens. Delegation allows users to assign staking rights to a stake pool or validator, who then create blocks and verify transactions. Validators are selected based on their performance, ensuring the network’s integrity.
Summary Review: The Solana Foundation’s decisive action against validators involved in sandwich attacks highlights its commitment to maintaining a fair and secure network. By removing these malicious actors, Solana aims to protect retail investors and uphold the integrity of its delegation program.
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