Qubic Discloses Security Incident: Approximately $1.3 million in QU Stolen, Involving 1,404 Qubic Wallets

October 18 - Qubic announced that between 23:42 UTC yesterday and 01:26 UTC today, attackers exploited insufficient randomness in some wallet Seeds to access and transfer approximately 2.94 trillion QU from 1,404 Qubic wallets. The issue lies in the Seed generation mechanism, not the Qubic protocol itself. Affected Seeds include those created in any browser on iPhone or iPad before October 18, 2026, those created in Mac Safari before the same date, and those created through the Qubic iOS App before July 2025. The network has been paused at tick 85,371,949, with 87.1% of the stolen funds still on the Qubic network and frozen, while the remaining 12.9% has been transferred to MEXC, and the relevant receiving accounts have also been frozen.

Qubic stated that the Seed generation issue has been fixed in version 4.26.4, and subsequent handling will be decided by the Computor quorum according to network rules. A full technical report will be released once the fund recovery plan is determined.