BNB launches Good Will Alliance to counteract MEV sandwich attacks

BNB Chain has launched the Good Will Alliance, aiming to counteract malicious maximal extractable value (MEV) practices, starting with targeted measures against sandwich attacks.

The initiative aims to unite infrastructure builders, validators, and the broader community to establish ethical standards, best practices, and enhanced security within the BNB ecosystem.

Sandwich attacks, a prevalent form of malicious MEV, have significantly impacted retail traders on Binance Smart Chain (BSC), causing losses totaling hundreds of millions of dollars, per BNBChain DAO.

Responding to these challenges, the alliance’s initial action focuses explicitly on mitigating sandwich attacks through advanced filtering mechanisms.

Infrastructure providers BlockRazor and 48 Club have deployed specialized sandwich attack filters within their block-building processes, setting an early benchmark for alliance participants. The alliance has established a GitHub repository listing builders compliant with these ethical standards, urging BSC validators to exclusively accept block bids from this vetted group.

Per BNB Chain, the alliance’s strategy involves defining clearer criteria for identifying sandwich attacks, developing sophisticated tooling to detect malicious MEV behavior, and fostering deeper community collaboration to bolster on-chain security.

These efforts will evolve through governance processes, BNB Evolution Proposals (BEPs), and regular codebase updates, aiming for long-term improvements in network fairness.

The initiative received strong community endorsement, evidenced by a DAO proposal that passed with 79% approval on February 14.

The proposal highlights the necessity of community-driven measures, including penalties for malicious builders, exclusion of irresponsible validators, and adoption of safer RPC nodes and MEV-protected wallets.

The Good Will Alliance plans to continue expanding its scope, actively seeking additional members to introduce further community-oriented security projects throughout 2025.