WuBlockchain
Nikhil Chandhok, Circle's chief product and technology officer, said he could not commit to a specific response if an Aave exploit linked to the Lazarus Group led to tens or hundreds of millions of dollars in USDC being stolen on Arc.
Why it matters
Chandhok described Arc as immutable public financial infrastructure supported by more than 20 validators. A rollback could potentially address losses after a catastrophic exploit, but he said breaking immutability could fundamentally damage trust that would be difficult to rebuild.
Market impact
The comments put governance and user protection at the center of Arc's design debate. For lending protocols such as Aave, the question is whether losses would remain settled on an immutable chain or prompt an intervention that changes expectations for blockchain finality.
Source: [Circle’s New Blockchain Is Built for More Than Stablecoins — YouTube](https://www.youtube.com/watch?v=YAg2VFZ0VWY)
Frequently asked questions
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What scenario raised the question of rolling back Arc?
The scenario involved an Aave exploit linked to the Lazarus Group that stole tens or hundreds of millions of dollars in USDC.
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What did Circle CPTO Nikhil Chandhok say about a rollback?
Chandhok said he could not commit to a specific response if such a theft occurred.
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Why is Arc's immutability central to the debate?
Arc is presented as immutable public financial infrastructure, so changing its history could undermine trust in the network.
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How many validators support Arc?
Chandhok said Arc is supported by more than 20 validators.
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What broader issue does the Arc debate raise for DeFi?
It raises the question of whether major exploit losses should remain final or lead to intervention that changes expectations for blockchain settlement.
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