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How an elite team pressured a hacker to return $200 million he stole from DeFi platform Euler

Jeff John Roberts
By
Jeff John Roberts
Jeff John Roberts
Editor, Finance and Crypto
Down Arrow Button Icon
Jeff John Roberts
By
Jeff John Roberts
Jeff John Roberts
Editor, Finance and Crypto
Down Arrow Button Icon
April 6, 2023, 8:05 AM ET

The wild world of DeFi has seen its share of hacks and high jinks, but nothing quite like what befell the lending service Euler Finance in recent weeks. The saga began in mid-March when a hacker used flash loans—a peculiar type of ultra-short-term loan unique to DeFi—to trick Euler’s protocol into paying him nearly $200 million. Normally, this would be the end of the story, leaving the Euler team with nothing to do but cry in its beer over becoming yet another victim of a major DeFi hack.

But that’s not how it played out. According to a person familiar with the ordeal, the Euler folks’ initial response was indeed despair since, as we know, crypto transactions are irreversible and most hackers hang their hats in lawless places like Russia or North Korea. Soon, however, Euler had a team of fixers working to recover the money, including law enforcement figures and law firm Morrison Foerster (a.k.a. MoFo), which is well versed in transnational negotiations.

What followed was a fraught back-and-forth that went on for weeks as Euler’s allies leaned heavily on the hacker, “Jacob,” whom the person familiar described as a mentally unstable obsessive, persuading him to do the right thing and return the money. This campaign reportedly involved convincing Jacob that, even though he was based in Russia, he had ticked off some very powerful people who could lean on local law enforcement to come nab him. After days of such messages, which were partly a bluff, Jacob finally wigged out to the point where he decided it was best to return the funds, which consisted of DAI, USDC, and wrapped Ethereum and Bitcoin.

The upshot is that Euler, one of the flagship projects in DeFi, is now in the process of returning millions of dollars to customers who likely believed—understandably—that their funds were gone. The episode underscores how DeFi, where investors plunk down money on automated platforms in hopes of outsize returns, remains susceptible to spectacular hacks. But it also shows how DeFi projects that take venture capital—a controversial practice in a field that professes ideals of decentralization—can turn to friends in high places at times of crisis. Euler acknowledged as much in a Tuesday Twitter thread that thanked the likes of Paradigm, Haun Ventures, Variant, and MoFo for saving its bacon.

Finally, if you want a less sunny view of VCs, check out this scorching piece by Tezos cofounder and Fortune guest columnist Kathleen Breitman. Or simply take a moment to cheer that, in the case of Euler, the good guys for once prevailed over a Russian hacker.

Jeff John Roberts
jeff.roberts@fortune.com
@jeffjohnroberts

DECENTRALIZED NEWS

Binance reportedly declined to buy crypto billionaire Justin Sun’s stake in Huobi on grounds the rival exchange has ties to China. (CoinDesk)

ETH tokens hit a nine-month high days ahead of the impending Shanghai upgrade to the Ethereum blockchain, which will allow ETH owners to liquidate staked tokens. (CNBC)

Decentraland attracted the likes of Tommy Hilfiger and Adidas to its Metaverse Fashion Week, but attendance topped out at 26,000, a 76% drop from the year before. (The Block)

Bob Lee, chief product officer of crypto-based global payment startup MobileCoin and founder of Cash App, was stabbed to death in San Francisco. (NYT)

Singapore is planning new guidelines to help the country’s banks vet crypto clients as part of a broader effort to create a regulatory regime for the industry. (Bloomberg)

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About the Author
Jeff John Roberts
By Jeff John RobertsEditor, Finance and Crypto
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Jeff John Roberts is the Finance and Crypto editor at Fortune, overseeing coverage of the blockchain and how technology is changing finance.

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