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Cointelegraphยท2025-10-02 15:30

Blockchain Security - MEV (Miner Extractable Value) is a persistent issue, with approximately $300 thousand lost to sandwich attacks last month [1] - Threshold encryption offers protection by encrypting the mempool, hiding transactions until block inclusion [1] - Shutter pioneered threshold encryption, initially with per-epoch encryption, later improved to per-transaction encryption, now live on Gnosis Chain [1] Vulnerabilities - A critical flaw was revealed: when the epoch key was reconstructed, all transactions became public, including those not yet included in the block [2]