Aptos Launches Encrypted Mempool: How Does It Work?
Users can opt in to keep pending transactions hidden until ordering is finalized, limiting frontrunning and sandwich attacks.
- On Monday, Layer-1 blockchain Aptos launched its Encrypted Mempool on mainnet, allowing users to hide pending transaction details to prevent maximal extractable value attacks including frontrunning and sandwich attacks.
- Trading bots often monitor pending blockchain transactions to identify profitable opportunities before execution, exploiting users through frontrunning and sandwich attacks. Aptos designed this feature to keep transaction details hidden until block ordering is finalized.
- Transactions encrypted on the user's device are decrypted by validators only after block ordering is finalized. This mechanism adds approximately 20 milliseconds of latency per block and requires a minimum gas price of 200 octas per gas unit.
- Petra wallet is the first to offer this encryption directly within its transaction signing process, while Aptos-based Decibel exchange plans to use it for private pending orders. Both target institutional and individual traders.
- Blockchain analytics company Bitquery identified approximately 6.9 million sandwich attacks on Solana between October 30, 2025, and October 7, 2026, highlighting the scale of MEV extraction. Following the launch, APT token fell 11.5% over 24 hours.
15 Articles
15 Articles
Aptos Launches Encrypted Transactions to Combat MEV Attacks
Aptos has launched an optional encrypted mempool on mainnet to help protect traders from frontrunning and sandwich attacks.
Aptos Encrypted Mempool Goes Live, Shielding Trades From MEV Bots With 20ms Delay
Key Takeaways: Aptos started hiding details of pending transactions in its Encrypted Mempool on mainnet. Validators are not the first to process transactions, thereby mitigating the possibility of frontrunning and
Aptos launches encrypted mempool as token unlock schedule en
🛡️ Aptos launches encrypted mempool to hide $APT transactions from front-runners. 🚀 The change arrives as Aptos ends its four-year token unlock schedule for insiders. 📉 Monthly release of new tokens drops by 60%, staking rewards take the lead. Continue Reading:Aptos la...
Aptos launches encrypted mempool as token unlock schedule ends
🛡️ Aptos launches encrypted mempool to hide $APT transactions from front-runners. 🚀 The change arrives as Aptos ends its four-year token unlock schedule for insiders. 📉 Monthly release of new tokens drops by 60%, staking rewards take the lead. Continue Reading:Aptos launches encrypted mempool as token unlock schedule ends
Aptos beats Ethereum to a built-in encrypted mempool as four-year vesting ends
Aptos has turned on an optional encrypted mempool on its mainnet, letting users hide a transaction’s contents until a block is finalized. The feature is expected to defend against front-running, and it went live on the same day that the Aptos network’s four-year token unlock schedule came to an end. What feature did Aptos switch...
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