Mempool Security

Definition ∞ Mempool security refers to the measures and protocols implemented to protect the mempool from various attacks and manipulations. The mempool is a waiting area for unconfirmed transactions before they are added to a blockchain block. Ensuring its security helps maintain the integrity and fairness of transaction ordering.
Context ∞ Concerns regarding mempool security are growing, particularly with the rise of Miner Extractable Value (MEV) strategies. Malicious actors can exploit mempool visibility to front-run or sandwich transactions, impacting user fairness and network efficiency. Developers are actively exploring solutions, such as private transaction ordering and specialized mempools, to enhance protection against these exploits.