MEV, or maximal extractable value, is a major issue on blockchains like Ethereum, with nearly $300,000 lost in sandwich attacks in September. This hidden fee can impact large trades significantly, representing 11% of block rewards extracted on Ethereum. MEV arises from the public nature of mempools, enabling frontrunning transactions.

To combat MEV, Shutter introduced threshold encryption on the Gnosis Chain, encrypting transaction contents before entering the mempool. A committee of keyholders splits the decryption key, preventing single-party decryption. While efficient, Shutter’s current deployment faces latency issues on Gnosis, but plans are in place for a more trust-minimized mempool on Ethereum.

Read more at Cointelegraph: Applied MEV protection via Shutter’s threshold encryption