Security researcher Cos from SlowMist has flagged a critical vulnerability in Qubic Wallet, warning that most private keys may have been leaked. According to monitoring data published October 20, the exposed keys can be recovered through just six connections. The finding raises serious concerns about user fund security on the Qubic network, as compromised private keys grant full control over associated wallets. No official response from Qubic Wallet developers has been reported yet.