Cysic brought in third-party security experts to investigate the October 17, 2026 bridge breach involving the unauthorized CYS mint and track the movement and potential swapping of the exploited CYS tokens

Overview Debates Related claims Topics Sources

Approximately 87.1% of the QU tokens drained in the October 18, 2026 wallet drain remain immobilized directly on the Qubic network on-chain

Cryptocurrency exchange MEXC froze the receiving account holding 12.9% of the drained QU tokens within one hour of the October 18, 2026 Qubic wallet drain

Qubic developers prepared for a mainnet restart utilizing the patched client version 4.26.4 following the October 18, 2026 wallet drain

The August 2026 Vottun Bridge exploit exposed operational risks tied to outer components, including the Vottun Bridge, of the Qubic network

Qubic developers released client version 4.26.4 to fix the October 18, 2026 seed-generation vulnerability and secured additional funds also exposed to that vulnerability prior to theft

In August 2026, the Vottun Bridge linked to the Qubic network was exploited in a security incident separate from Qubic's October 18, 2026 wallet drain

Decentralized AI computing network Qubic halted its mainnet on October 18, 2026, after an attacker drained 1,404 user wallets

Qubic network validators halted mainnet operations at tick 85,371,949 to lock the ledger in place following the October 18, 2026 Qubic wallet drain

Cryptocurrency exchange Bitget suspended all QUBIC token deposits and withdrawals as a precaution following the October 18, 2026 mainnet halt

The October 18, 2026 Qubic wallet drain resulted in the theft of approximately 2.94 trillion native QU tokens valued at roughly $1.3 million

The October 18, 2026 Qubic wallet drain did not affect QEARN, the Qubic network's staking feature

Qubic developers stated that the October 18, 2026 wallet drain stemmed from weak, predictable wallet seeds created on legacy Apple devices, Safari browsers, and early iOS applications rather than a core network code bug

Deciding whether to compensate victims of the October 18, 2026 Qubic wallet drain rests with Qubic's Computor cluster, the group of network operators who vote on governance decisions

Restoring QUBIC token deposits and withdrawals on Bitget and managing frozen assets on MEXC remain pending resolution following the October 18, 2026 Qubic wallet drain

Qubic instructed victims affected by the October 18, 2026 wallet drain to file official police reports as part of the formal paper trail for potential compensation

The Qubic wallet drain on October 18, 2026 lasted 104 minutes, running from 23:42 UTC on October 17, 2026, to 01:26 UTC on October 18, 2026

On-chain data platform Token Terminal reported in early October 2026 that Uniswap earned approximately $14.7 million to $14.81 million in September 2026, marking the protocol's highest monthly total to date

Cysic blacklisted the recipient address of the unauthorized 10 million CYS mint at 13:47:52 UTC on October 17, 2026, freezing approximately 2.8 million tokens

Cysic reported no impact on its CGT governance token from the October 17, 2026 bridge exploit affecting CYS tokens

Cysic indefinitely suspended its cross-chain bridge on October 17, 2026 following an unauthorized CYS token mint, providing no timeline for its return