Incident Overview and Response
Taiko, an Ethereum Layer-2 scaling solution, suffered an attack on June 21. The attack vector was quickly identified and closed. According to the latest announcement, the fix has passed a comprehensive review by independent security experts, confirming that user funds have not been compromised. The incident triggered the team's security emergency process, leading to a series of systematic remediation and restart measures.
Detailed Four-Step Restart Plan
The Taiko team has outlined a clear phased restart plan comprising four steps, each overseen by the Security Council to ensure transparency and trust. Step 1: Deploy the fix and confirm the chain's final state. The team will inspect all blocks to guarantee there are no forged checkpoints or exploitable claim paths. This step requires Security Council approval before proceeding. Step 2: Replenish bridge funds. Ensure 1:1 full backing of L2 assets, with on-chain verifiability for all users. This restores trust in the cross-chain bridge and covers any potential funding gaps caused by the attack. Step 3: Resume network operations. Reopen transfer, swap, and transaction functions on L2, allowing the application ecosystem to gradually return to normal. Step 4: After confirming stable finality and network operation, the Security Council will submit a proposal to formally lift the cross-chain bridge pause. Users can then freely transfer assets between Taiko and other chains.
User Guidance and Safety Measures
To prevent anomalies during the restart, Taiko said it would impose conservative withdrawal limits as an extra safety measure, but these are not expected to restrict normal asset transfers. Users do not need to take any action; deposit and withdrawal functions will resume automatically. The team emphasized that all remediation code has been audited by third-party experts, and the Security Council will monitor every step of execution. This incident serves as a reminder for Layer-2 projects to strengthen security audits and real-time monitoring. Cross-chain bridges, as critical infrastructure, must be equipped with multi-layered verification and emergency pause mechanisms.