Qubic Network Freezes After $1.3M Token Drain — Most Funds Recovered

Qubic paused its blockchain after attackers siphoned roughly $1.3 million worth of QU tokens from a single wallet.

The team confirmed that 87.1 percent of the stolen supply never left the network, effectively frozen in place by the halt. MEXC, the exchange receiving the remainder, locked the destination account before the funds could be moved further. The attacker managed to bridge only a small fraction to Ethereum before the route was cut off.

How the freeze worked

Qubic's consensus allows validators to stop block production when a critical anomaly is detected. That mechanism kicked in automatically, giving the team time to isolate the affected addresses without a hard fork. The exchange cooperation happened in parallel — MEXC flagged the deposit address within minutes of the on-chain alert. No governance vote was required, and no manual intervention from node operators slowed the response.

What this means for users

Funds held in non-custodial wallets were never at risk; the exploit targeted a single custodial address. Trading QU on MEXC remains suspended while the exchange completes its internal review. Other venues have not reported unusual activity, and the QU price held relatively steady during the pause.

Why it matters

Network-level circuit breakers are rare in crypto. Most chains rely on social consensus or governance votes to reverse hacks, which takes days. Qubic's approach — an automatic pause paired with rapid exchange coordination — contained the loss to roughly 13 percent of the stolen amount. If the model holds, it becomes a template for other high-throughput chains that need faster incident response without sacrificing decentralization.