Arbitrum Security Committee Launches Emergency Intervention: Freezes 74.5 Million ARB and 8,425 ETH Linked to Binance Hack Case
Author: CoinMarketCal (TradingView)
Compiled by: TechFlow
TechFlow Digest: Following Binance's encounter with the largest hot wallet theft in cryptocurrency history, totaling $5.5 billion, leading Ethereum Layer 2 network Arbitrum swiftly executed a decisive on-chain interception. The Arbitrum Security Council invoked emergency powers to carry out an urgent intervention on the Arbitrum One mainnet, successfully transferring 74.5 million un-washed ARB tokens and 8,425 ETH from the hacker's address into intermediary frozen wallets, completely stripping the attackers of withdrawal rights.
This asset interception action not only effectively curbed the hackers' dump-and-cash-out operations within the Layer 2 ecosystem but also joined forces with Tether and Circle's stablecoin freezes to build a cross-institutional anti-money laundering defense line. TechFlow has compiled this full-text report on the emergency fund rescue progress, extending the background context, thoroughly outlining the Security Council's power boundaries, subsequent DAO governance voting procedures, and industry reflections on balancing Layer 2 emergency control with decentralization.
Following the epic hacking attack targeting cryptocurrency exchange Binance (Binance), Arbitrum’s Security Council has taken decisive emergency interception measures, transferring 74,559,805 ARB and 8,425 ETH remaining in the hacker's address to intermediary isolated frozen wallets on the Arbitrum One mainnet.
The Security Council utilized the protocol's built-in emergency freeze authority to completely lock down these assets before the hackers could transfer them to decentralized exchanges for conversion or cross-chain mixers.
Currently, this massive frozen ARB and ETH asset pool has been completely removed from the hackers' control. Future permissions to reactivate, transfer, or dispose of these funds will be strictly subject to subsequent resolutions by the Arbitrum Security Council or the Arbitrum DAO governance process, with the DAO community ultimately steering the specific asset return path.
According to the official Emergency Announcement issued by Arbitrum, the Security Council decided to execute this emergency rescue transaction after weighing the highest principle of maintaining ecosystem asset safety and stability, ensuring that daily on-chain transfers for normal users remain undisturbed.
Emergency Intervention Action: Arbitrum Security Council Intercepts Hacker-Linked Assets
After confirming that the attacker initiated illegal fund transfers on the Arbitrum network using compromised Binance hot wallet private keys, the Security Council swiftly activated its emergency response protocol. By submitting an emergency multi-signature transaction on-chain, it directly transferred tokens from the implicated accounts to a custody treasury.
This measure thwarted the hackers' original plan to launder funds through decentralized automated market makers (AMMs) and cross-chain liquidity protocols, effectively avoiding secondary liquidity stampedes caused by massive sell pressure on ARB tokens and asset prices within the Layer 2 ecosystem.
On-chain browser records show that at the exact moment the Security Council completed the asset transfer, the available token balance of the target hacker address was reduced to zero. The funds were locked in a dedicated intermediary custody smart contract, rendering the private keys held by the hackers incapable of issuing any further valid instructions over these funds.
Frozen Asset Breakdown: 74.5 Million ARB and 8,425 ETH Transferred to Intermediary Treasury
The successfully intercepted and physically frozen assets mainly comprise two major components: approximately 74,559,805 native ARB governance tokens, and 8,425 Ether (ETH).
Based on current secondary market weighted average pricing, the total value of these frozen assets is approximately $30.5 million. Although this sum represents only a fraction of the over $5.5 billion total loss suffered across networks during the entire Binance incident, it constitutes the largest single chunk of liquid capital the hackers attempted to mobilize on the second layer.
By imposing state locks on these native assets within the intermediary wallets, the Arbitrum Security Council successfully prevented attackers from utilizing aggregators to rapidly convert ARB into non-sovereign anonymous assets through money laundering channels.
Case Tracing: Directly Mapping the On-Chain Escape Route from the Binance Hot Wallet Theft Incident
According to an incident investigation report released earlier by on-chain security firm Blockaid, this frozen asset originated directly from a chain reaction triggered by the private key compromise of Binance's core hot wallet on October 29.
Within just 12 minutes of the mainnet Ethereum Binance 14 wallet being raided via malicious delegation under EIP-7702, four operational hot wallets for Binance on Arbitrum were similarly targeted. Using the stolen private keys, the hackers broadcast transfer commands, moving a total of 74.6 million ARB and 8,426 ETH to the same consolidation address controlled by them.
After succeeding, the hackers attempted to leverage the Layer 2 network's ultra-low gas costs and rapid block confirmation speeds to quickly disperse and split the funds. However, the Arbitrum on-chain tracking team and global security analysts pinpointed the exact destination of these cross-chain funds within minutes, securing a crucial time window for the Security Council's lightning-fast intervention.
Boundaries of Security Council Power: Emergency Multi-Sig Mechanism and Historical Precedents
The Arbitrum Security Council is a professional governance body elected by the Arbitrum DAO community, typically composed of 12 renowned technical experts in global crypto security and engineering. Executing major emergency interventions requires meeting a minimum multi-signature threshold of 9 out of 12 (9-of-12).
By design, the Security Council holds the highest privilege to bypass the standard Timelock of regular DAO proposals—which can last several weeks—to directly implement emergency defensive measures upon encountering catastrophic system vulnerabilities, consensus forks, or malicious hacking attacks.
This is not the first time in history that the Arbitrum Security Council has invoked this emergency privilege. During the KelpDAO vulnerability exploit in April 2026, the Security Council used a similar mechanism to urgently transfer and freeze 30,766 ETH from a hacker address (valued at approximately $71 million at the time), successfully safeguarding the asset security of protocol stakers.
Subsequent Asset Disposal Path: Requires Arbitrum DAO Governance Voting Resolution
Unlike centralized stablecoin issuers such as Tether or Circle, which can permanently and unilaterally freeze blacklisted addresses, the Arbitrum Security Council does not hold unilateral statutory disposal rights to transfer funds to any victim after completing an emergency interception.
According to the Arbitrum constitutional governance charter, this asset currently remains in an "intermediary freeze and custody status." The ultimate fate of the funds, including how victim ownership is verified, whether they are refunded directly to Binance's cold wallets, and the specific legal and clearing compliance procedures, must all undergo open on-chain discussions and community-wide votes via formal Arbitrum Improvement Proposals (AIPs).
This means that community governance delegates and all ARB token holders will, within the coming weeks, vote on-chain to finally approve the unfreezing and handover plan for this $30.5 million asset portfolio.
Industry Reflections: Rebalancing Layer 2 Emergency Control and the Decentralization Finale
The Arbitrum Security Council's decisive and highly efficient emergency rescue operation has sparked in-depth bidirectional discussions and philosophical reflections within the crypto community.
Supporters argue that when facing national-level hacking crimes involving billions of dollars and large-scale hot wallet thefts, mature Layer 2 ecosystems must possess a rapid hemostatic defensive immune capacity. The Security Council's decisive intervention effectively defended the industry's foundational base and investors' core interests.
Conversely, some decentralized purists have once again scrutinized the Layer 2 "training wheels" mechanism. Pointing out the objective reality that a multi-sig committee can forcibly move assets from specific addresses, they indicate that while Ethereum scaling layers march toward the Stage 2 fully permissionless decentralization finale, they must still maintain a delicate balance between security pragmatism and censorship resistance principles.