The Solana -based Marinade Finance has unveiled new tools to combat validators that benefit from traders.
Bad actors among Solana validators have long taken on a challenge, but indigenous protocols are making efforts to tackle the problem. On Tuesday, June 24, Marinade Finance rolled out a series of tools that were designed to detect validators and block those sandwich attacks against users.
Marinade’s statement about Sam delegation to negative MEV validators (sandwichers):
1/ We have assessed the research that is shared by the @0xghostlogs and @0x7CF teams, which emphasized the importance of strengthening our Blacklisting efforts. pic.twitter.com/gmsw4lmjdp
– Marinade 🛡️ (@MarinadeFinance) 24 June 2025
Sandwich attacks take place when Validators are strategically installed a transaction, both before and after the trade of a user. Because validators can control transactical interviews, they use this advantage to extract the profit – at the expense of the trader.
Marinade identified such behavior in SOL delegated through the Market for the Auction’s Auction. In response, the team developed more effective blacklist mechanisms and added the cutting tool that punishes malignant validators by reducing their rewards.
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Solana’s Anatoly Yakovenko praises the move
To further reduce the risks, Marinade Marinade Select introduced a composite list of trusted validators that can follow other strikers. The move has already received remarkable support, including Solana co-founder Anatoly Yakovenko, in particular in the context of deploying liquids.
This is a great result and was my dream for Polish.
We need LSTs to be used as collateral in Defi, and for those Defi apps to give feedback to the LSTs about what kind of validators are best for Defi.
If this loop works, I am not worried about the long -term ecosystem … https://t.co/q2lmdypxur
– Toly 🇺🇸 (@aeyakovenko) 24 June 2025
Yakovenko emphasized that liquid deployment protocols such as Marinade, Jito and Lido should give feedback about the performance of the validator. This Feedbackklus, he argued, can help insulate the wider ecosystem of bad actors.
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Solana Foundation has been actively trying to revise its validator ecosystem for a while. In April the foundation announced that it would start with cutting small validators from his delegation program. The organization gives some of its SOL -Tokens to validators to stimulate their income.
Yet challenges for the Solana Validator Ecosystem remain. Due to high fixed costs related to running a junction, many Validators have difficulty even breaking. This is why some of them resort to operations such as sandwich attacks.
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