Qubic halts its mainnet after 1,404 wallets are drained: the seed was the weak point

The information provided in this article is for informational purposes only and does not constitute financial advice. Cryptocurrency investments carry a high degree of risk. Always conduct your own research.An attacker drained 1,404 Qubic wallets on the night of October 18, roughly $1.3 million. The protocol was not to blame: seed generation in the browser supplied too little randomness.On the night of October 18, 2026, the Qubic network shut down its own operations. An attacker had drained 1,404 wallets before that, roughly 2.94 trillion QU worth about $1.3 million. According to the project, the cause lies outside the Qubic protocol: some wallets generated their recovery phrase in a way that made it predictable. If you hold QU and ever created your wallet in a browser on an iPhone or iPad, or in Safari on a Mac, you have to assume your seed is on the published list. The case does not end with Qubic. A seed that a random number generator produces inside a browser depends on the quality of that generator. That applies to every wallet created in a browser, whatever the coin. What happened in the Qubic network on the night of October 18 The window is narrow and well documented. After ...