Arbitrum has frozen over $71 million in ETH following a hack of the Kelp protocol, igniting debates about decentralization and security.
The Arbitrum Security Council has enacted emergency measures by freezing 30,766 ETH, valued at approximately $71.2 million, in response to the recent Kelp protocol hack.
The Security Council decided to freeze the stolen ETH linked to the KelpDAO exploit after consulting with law enforcement regarding the hacker's identity. This action prioritizes the security and integrity of the community.
— Arbitrum (@arbitrum) April 21, 2026
The frozen assets are now in a "temporary frozen wallet," meaning only project management can access and move them. Legitimate owners will eventually reclaim their funds once an agreement is finalized.
On April 21, 2026, blockchain investigator ZachXBT revealed that the hacker had begun laundering the stolen ETH, converting about $1.5 million into Bitcoin via THORChain and an additional $78,000 through the Umbra protocol. Meanwhile, PeckShield reported over $176 million was moved through various platforms, including THORChain and BitTorrent.
In the wake of Arbitrum's freeze, it was noted that the hacker withdrew approximately 75,700 ETH, worth around $175 million, from Ethereum, utilizing small transactions through Umbra.
Controversy Over Centralization
The decision to freeze assets has sparked debate over decentralization in the crypto space. Critics argue that such actions contradict the foundational principles of blockchain technology, while supporters contend they enhance security against criminal activity. Some users expressed their dissatisfaction, questioning the decentralization of Arbitrum.
“So a council can just freeze 30,000 ETH, and we’re still calling this decentralized?” remarked a user on social media.
Griff Green, a member of the Arbitrum Security Council, defended the decision, emphasizing the extensive discussions that led to the freeze. He noted that not all council members supported the action, with only nine out of twelve voting in favor.
Impact on Aave and the DeFi Ecosystem
Aave emerged as one of the victims of the Kelp hack, suffering a loss estimated at $195 million. Risk management expert LlamaRisk outlined two scenarios regarding how this irrecoverable debt could affect the protocol's ecosystem.
In the first scenario, losses would be distributed among rsETH holders, potentially resulting in a $123.7 million deficit for Aave. The second scenario would place the entire deficit on Layer 2 solutions, leading to a total irrecoverable debt of $230.1 million. Aave has reserves of about $181 million, which could be used to address potential deficits.
Despite these challenges, some industry experts believe that the DeFi sector remains resilient and capable of overcoming such setbacks.
Investigations and Negotiations
The Kelp team has begun investigating the hack, attributing part of the blame to LayerZero for its configuration. Meanwhile, TRON founder Justin Sun has reached out to the Kelp hackers, suggesting a negotiation to recover the stolen funds, arguing that it would be unwise to allow both Aave and Kelp to suffer further damage.
As of now, addresses linked to Sun have transferred significant amounts to Aave, while other major players like MEXC and Abraxas Capital have also withdrawn funds following the hack.
This incident highlights ongoing vulnerabilities within the DeFi ecosystem and raises questions about security measures and protocols in place to protect users and funds.
