"Sandwich attack" precaution from Solana: They were expelled from the program
The Solana Foundation has excluded some validators from its token distribution program for their involvement in conducting “sandwich attacks” on decentralized exchanges on the network. It was also noteworthy that this step came after some measures developed by the foundation against such malicious acts.
An important step has come from the Solana Foundation regarding Solana DEXs, whose use has increased significantly recently. The Foundation has excluded validators involved in some attacks from the SOL token bounty program. These validators verified transactions for the security of the network and earned SOL tokens in return.
Tim Garcia, the manager responsible for validator communications at the Foundation, stated that sandwich attacks are against the rules announced on May 7 and said, “The decisions taken cannot be changed. “We found that some operators participate in mempools that allow sandwich attacks,” he said.
In the cryptocurrency world, sandwich attacks, which are a type of manipulation carried out by acting from the front, are known as games played on prices, especially in decentralized exchanges.
If we take the #Solana network as an example, when a DEX user wants to buy a meme token with SOL, the attacker quickly steps in.
While the user is about to pay 10 #SOL tokens for the meme coin (sample price), the attacker performs this transaction right before the user. Therefore, the user buys the token more expensively. After the user's order is fulfilled, the attacker has the opportunity to sell the token at a more expensive price and makes the sale. Therefore, the attacker sells the token he bought cheaply at a high price. The user buys at a more expensive price, not at the price he wants to buy.
