Jito Labs disabled its block-engine mempool after a surge in sandwich attacks against Solana traders
Mar 9, 2024outcome unclear- Outcome
- Feature removed
- Loss
- Not a Jito protocol loss; user losses to MEV bots not quantified
Jito is a Solana infrastructure brand that does two separate jobs.
Jito Labs is the company behind the Jito-Solana validator client and the block engine. These let traders, bots and apps pay validators a tip to have transactions included in a particular order 3. By September 2025, Blockworks reported the Jito client running on more than 97% of the Solana network 6.
JitoSOL is a token you receive when you deposit SOL into Jito's stake pool. Its value against SOL rises as rewards accrue. Rewards are not paid out separately; they are reflected in the token's exchange rate 1. For the general mechanics, see liquid staking.
Fees. Jito takes a management fee of 4% of rewards, after validators' own commission. The docs estimate this at about 0.3% of deposited value a year 1. Under the governance rules, JTO holders can change pool fees and fee splits 4.
Risks. The docs name two ways JitoSOL could lose value against SOL: large-scale slashing (a penalty Solana does not currently enforce) and a critical smart-contract bug 1. JitoSOL runs on the SPL stake pool program written by Solana Labs, which has three published audits 1. Further risks are less obvious. JitoSOL's market price can briefly trade below its redemption value in stressed markets. DeFi protocols that accept JitoSOL as collateral add their own liquidation and contract risks. The Lido profile describes the same model on Ethereum for comparison: Lido.
Jito (Re)staking lets holders of JitoSOL and some other SOL-based tokens put those assets to work securing additional networks 5. These networks are called NCNs (node consensus networks), and they pay extra rewards for the security. Background: what is restaking.
Restaking is far smaller than JitoSOL. DefiLlama counted about $18 million in Jito Restaking on October 23, 2026, against about $1.09 billion in JitoSOL 9.
JTO is Jito's governance token, with a fixed supply of 1 billion 4. Holders form JitoDAO and vote on Jito Improvement Proposals (JIPs) through the Realms interface. They control treasury spending, protocol parameters, stake pool fees and fee splits 4. The Jito Foundation, a Cayman Islands foundation company, carries out the DAO's decisions 4.
Jito says DAO revenue comes from the JitoSOL management fee, 5.7% of Jito tips and BAM 8. In September 2025, JTO holders also voted to send Jito Labs' share of block-engine and BAM fees to the DAO 6. The token was introduced in December 2023 7. This profile does not cover JTO price or price outlook.
Hacks in DefiLlama’s public database are also scored as the security record on the Jito rating page.
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