️⚡️ RESEARCH: Malicious MEV remains one of Ethereum’s toughest problems to solve. Because transactions are visible before execution, bots and validators can front-run, sandwich, and reorder trades. Research estimates ~2,000 sandwich attacks per day, extracting over $2M every month from users. Mempool encryption is one mitigation path, but early designs relied on batch or epoch-based models. When transactions missed inclusion, data was still revealed, reopening the door to MEV. Flash Freezing Flash Boys (F3B) proposes a different approach: per-transaction encryption, keeping transactions private until finality. While F3B isn’t deployed today due to execution-layer complexity, it sets a clear benchmark for MEV-resistant transaction design, encrypted mempools, and even applications like sealed-bid auctions.(Cointelegraph)