NEW YORK, Oct. 19 -- The Qubic network halted on Sunday after an attacker reportedly exploited weakly generated wallet seeds to empty 1,404 wallets. Qubic's own count, posted to X at 12:29 UTC on 18 October, puts the haul at about 2.94 trillion QU, drained between 23:42 UTC on 17 October and 01:26 UTC on 18 October.

A seed works as a wallet's master password, so a guessable one is a door left unlocked. Qubic said, according to Cointelegraph, that the flaw touched seeds created in any browser on an iPhone or iPad, in Safari on a Mac until 18 October, or in the Qubic iOS app before July 2025. It is the same class of failure as the Coldcard hardware wallet hack TEH reported this summer, where predictable seed phrases let attackers rebuild k...