The BNB Smart Chain (BSC) saw a record surge in Sandwich attacks in November. Data from Dune Analytics reveals that 35.5% of blocks were exploited, marking an all-time high for the network. Malicious actors leveraged blockchain transparency to manipulate decentralized exchange (DEX) transactions.
Understanding Sandwich Attacks
A Sandwich attack involves a malicious actor placing two trades around a victim’s transaction on a DEX. This tactic increases the victim’s purchase price by exploiting low liquidity. The attacker benefits from the manipulated price discrepancy.
- Victim Impact: Over 43,000 DEX traders on BSC fell victim to these attacks last week, the highest in nine months.
- Bots Involved: Approximately 645 active bots executed these trades during the same period.
Exploits Rise Alongside Network Growth
The surge in Sandwich attacks parallels increased trading activity on the BSC network. DEX volume reached $9.2 million last week. Additionally, BNB, the network’s native token, gained 17% in value over the past month. It traded at $656 with a market cap of $94.5 billion at the time of writing.
A Stark Contrast With Ethereum
While BSC faces a rise in attacks, Ethereum has seen a steady decline in similar exploits. The percentage of impacted blocks on Ethereum dropped from 62.9% in July to 40.2% in November. During this period, only 12,000 DEX traders on Ethereum were affected.
The Road Ahead
This surge in Sandwich attacks highlights critical vulnerabilities in decentralized ecosystems, especially on BSC. To ensure fairness and maintain trader confidence, blockchain networks must implement robust security measures to prevent such manipulative practices.
The growing prevalence of Sandwich attacks poses significant challenges for networks like BSC. Proactive measures are essential to protect users and ensure equitable participation in DEX markets.
I am Toby Rothschild, Co-Founder of Spearmint and author at Coinography, and a strategist focused on advancing Web3 innovation, digital ecosystems, and the future of decentralized technology. I combine product thinking, creative leadership, and deep interest in emerging trends to help shape how individuals and organizations interact with the next generation of digital systems.
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