BNB Chain Hit by Record Sandwich Attacks in November, Impacting Thousands of Traders | BinanX News

A record 35.5% of BNB chain blocks were affected by Sandwich attacks in November.

In the past week alone, 645 Sandwich Bots were found to be active on the chain. In total, approximately 43,400 DEX traders were affected throughout the entire ordeal.

Sandwich robots blow up the BNB chain

According data Compiled by Dune Analytics, trading volume on the BNB Chain DEX reached $9.232 million that week, with Sandwich Bot transactions contributing $1.322 million.

A sandwich attack, also known as front-running, is an MEV technique in which an attacker identifies a pending transaction and strategically places orders before and after it, effectively surrounding the target transaction. While front-running is one of the most common MEV methods, other strategies such as back-running and transaction order manipulation are also carried out.

These types of attacks are especially common on decentralized finance (DeFi) platforms and decentralized exchanges (DEX), where mempool transparency exposes transactions before they are confirmed.

In contrast, Ethereum has seen a reduction in Sandwich attacks since July, with the percentage falling from 62.9% to 40.2% in the last five months. Over the past month, more than 12,000 DEX users on the network fell victim to these attacks.

Sandwich attacks on Solana

Solana has also seen a significant increase in these attacks this year. As a result, the Solana Foundation took decisive action against validators involved in sandwich attacks in June 2024. The foundation removed a group of validator operators from its delegation program for their participation in these attacks, adding that any validators involved in such behavior would be permanently excluded and their participation withdrawn.

Tim Garcia, Solana’s validator relations leader, reaffirmed that enforcement would continue as the foundation detects operators engaging in such malicious activities. Mert Mumtaz, co-founder of Solana RPC provider Helius, explained that while Solana’s design prevents these attacks, some actors modified their validators to enable them. Mumtaz also suggested that other interest groups could adopt similar policies against sandwich attacks in the future.