Aptos Launched Encrypted Mempool on Mainnet
The new feature aims to protect transaction data privacy by preventing front-running and maximal extractable value.
Updated on Oct. 12, 2026 in Quantum Computing
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Aptos has successfully launched an encrypted mempool on its mainnet, enabling users to keep transaction details private. The system utilizes a decentralized decryption process requiring a two-thirds stake-weight threshold.
Why it matters
The implementation aims to mitigate predatory front-running and reduce maximal extractable value (MEV) by hiding transaction contents from block proposers. This enhances order privacy for users participating in the Aptos ecosystem.
The system introduces an added latency of 20 milliseconds per block during a 50-node benchmark. Decryption is contingent on reaching a stake-weight threshold of at least two-thirds of the network's voting power.
The players
Aptos
Aptos is a layer-one blockchain platform designed for scalable and secure decentralized applications.
ZKSecurity
ZKSecurity is an independent auditing firm that specializes in security reviews for cryptographic protocols and blockchain systems.
Petra
Petra is a digital wallet application that provides users with access to features on the Aptos network.
Decibel
Decibel is a platform building on blockchain technology that plans to leverage encrypted mempools for order privacy.
The details
When the feature is enabled, clients encrypt transaction details before submission, though sender addresses and gas fees remain visible. Block proposers order these encrypted transactions, which validators then collectively decrypt only after reaching finality.
Timeline
Aptos launched the encrypted mempool on the mainnet on October 12, 2026.
The Tech Race
The adoption of the AIP-144 encryption standard marks a significant shift in how blockchain networks handle transaction privacy compared to traditional public mempools. This move positions Aptos to compete more effectively against rival chains by prioritizing user order privacy over transparent, extractable data.
Users can now leverage the encrypted mempool feature via the Petra wallet to protect their transaction contents. By hiding order details, the system helps ensure that users are less susceptible to negative price impact caused by front-running.
The takeaway
By moving transaction decryption to the post-finality phase, Aptos sets a new precedent for privacy in decentralized finance. Users should ensure their wallet software is updated to the latest version to take advantage of these new security features.
Further reading
Learn more about the latest innovations in Quantum Computing.
Source note: This article includes information reported by TokenPost.
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