Qubic has frozen its blockchain after an attacker accessed roughly 1,400 wallets through weak seeds, the project reported. Most of the diverted funds remain onchain, a smaller share is frozen at MEXC, and network validators are set to vote on a recovery plan.
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The report, published on Oct. 19, 2026, says an attacker drained about 1,400 wallets on the Qubic network by exploiting weak seeds. Qubic responded by freezing the chain, a network-level action that stops transaction processing while validators assess the incident. The project also disclosed that 87.1% of the stolen funds remain onchain, while the remaining portion was frozen at the crypto exchange MEXC. Those figures define both the exposure and the limits of recovery: most assets are still visible on the ledger, but the rest depends on exchange cooperation.
A seed phrase is the recovery credential for a crypto wallet, so its randomness determines whether an attacker can guess or reproduce it. In this incident, Qubic attributes the wallet drains to weak seeds, according to the report. That distinction matters because it shifts the initial exposure to wallet-generation practices used by affected users or software. When many wallets share a weak seed-generation process, a single method can expose a large set of addresses, which helps explain how roughly 1,400 wallets were drained in one campaign.
Qubic says 87.1% of the stolen funds remain onchain, meaning the majority of the diverted assets have not left the network's ledger. The remaining share was frozen at MEXC, an exchange that can hold and restrict assets deposited to its platform. The split is important because onchain funds and exchange-held funds require different recovery paths: the former depends on network governance and ledger actions, while the latter depends on the exchange's procedures. The report does not provide a dollar value for the total loss, so the disclosed figures describe proportions and wallet counts rather than monetary scale.
Qubic's validators are preparing to vote on a recovery plan, according to the report, making the network's governance process central to what happens next. The chain freeze and the planned vote are separate steps: the freeze limits movement during the response, while the vote would determine whether and how recovery is pursued. Because the report does not detail the plan's terms, the scope of any reimbursement or ledger adjustment remains unspecified. The outcome will affect affected wallet holders and the network's operations, but it depends on validator participation and the handling of funds already frozen at MEXC.
Qubic reported that an attacker drained about 1,400 wallets by using weak seeds. The network froze its chain in response and said 87.1% of the stolen funds remain onchain, with the rest frozen at MEXC.
A seed phrase is the backup credential that controls a wallet and lets users restore access. If a seed is generated with insufficient randomness or predictable patterns, it can be easier for an attacker to guess or reproduce. Qubic attributes the drains in this incident to weak seeds.
Qubic says 87.1% of the stolen funds remain onchain. The report says the rest was frozen at MEXC. It does not disclose a total dollar value.
The chain freeze is a network-level response that stops transaction processing while validators assess the incident and prepare a recovery vote. Qubic says validators are preparing to vote on a recovery plan. The report does not specify how long the freeze will last.
Scope of the Qubic Incident
Why Weak Seeds Matter
Onchain and Exchange Exposure
Validator Vote and Next Steps
This article is rewritten from public news sources and further processed by AI. It is provided for information only and does not constitute investment advice — refer to the original source for the authoritative version.
Qubic's validators are set to vote on a recovery plan, according to the report. The plan's terms are not detailed in the source, so it is not yet clear what form recovery would take. The vote is separate from the exchange freeze at MEXC.
