Solana client Jito Labs axes mempool function following increase in MEV attacks

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client developer has scrapped the mempool served through the Jito Block Engine after weeks of increased ‘sandwich attacks’ on Solana users.

In a sandwich or maximum extractable value (MEV) attack, a sophisticated bot that notices certain types of open trades can design its own trades to take advantage of that knowledge and profit at the expense of retailers. While MEV attacks are common on Ethereum, which has a built-in mempool, Solana does not have its own mempool. However, the introduction of the Jito Block Engine by Jito Labs introduced its own Solana mempool, making such attacks possible even though they violated Jito’s terms of service.

In January, a Solana-based MEV bot made $1.8 million in seconds after turning back a memecoin trader looking for the dogwifhat (WIF) coin.

Jito Labs, in a thread on continues to drive the long-term success of the Solana. network, including its applications, users, validators, and stakers.”

Jito Labs unveiled its governance token last December; the token saw a trading volume of $1.1 billion on its first day of launch. The token is currently trading at $2.84, up 2.30% in the last 24 hours, as of 5:11 PM EST.