A new bot, baptized as Quanbot, has been released on Monday, August 11, 2025 by an initiative called Project Eleven. Its mission is to monitor bitcoin transactions in real time and alert about those that may be exposed to risks derived from quantum computers. The tool, accessible through the @quantum_tracker account in X, seeks to offer users clear information about the vulnerability of funds, avoiding speculation and focusing on practical data.
Quanbot It operates scanning transactions in the Bitcoin Mempool, the “waiting room” where operations are recorded before confirmation on the network.
Its main function is to identify shipments to directions vulnerable to quantum attacks, Notify the senders if their own transactions expose their public keys for reuse or partial expensesand publish real -time updates on significant movements.
The tool does not require manual intervention and is designed to provide automatic alerts, allowing users to make informed decisions before quantum threats materialize.
Quanbot provides significant utility to Bitcoin, taking into account that At least 6 million BTC are housed in quantically vulnerable addresses At the time of writing, as cryptootics reported.
Project Eleven It details in its announcement two methods through which a cryptographically relevant quantum computer could compromise a Bitcoin address.
The first, using a “just in time” attack in the Mempool, implies that a quantum machine Derive the private key of a public key exposed in less than ten minutes that it takes for a transaction to be confirmeda scenario that demands an immediate and advanced computational capacity.
The second, more plausible, is an attack of “collect now, decipher later” (Harvest-Now-Decrypt-Later) where adversaries collect public keys today – specially from addresses that reuse keys or use specific formats – to decipher them later, When they have a sufficiently powerful quantum processor.
This strategy takes advantage of the prolonged exposure of data in the Bitcoin accounting record, a risk that Quanbot seeks to mitigate with its monitoring and alerts in real time.
The Project Eleven initiative is presented as an educational and technical response, and makes available to the community a tool to protect its assets in a context where advances in quantum computing, to some extent unpredictable, could alter the safety of cryptography systems.
Project Eleven is a project that seeks to ensure digital infrastructure designing products and protocols suitable for surviving Q-Day, The historical moment in which the cryptographically significant quantum computing is made its way in the technological society with its first real and evident application.
According to his blog, Project Eleven raised six million dollars In a financing seed round to build post-quantic cryptography.
A few hours after its premiere, Quanbot revealed that the 1820 BTC transaction by a Bitcoin whale is vulnerable to quantum computing.
The reason? This whale would have moved its funds to a reused direction of the type Pay to script hash (P2SH). The P2SH addresses do not hide the public keys at the time of spending, which allows them to easily detect them in the Bitcoin accounting network to collect and decipher them in the future.
