Coinbase director finds $322K in crypto for hack victim

After identifying multiple “rich list” Ethereum Classic addresses, a Coinbase director said he was able to track down one individual who lost hundreds of thousands of dollars in 2019

article-image

Ahmed Zaggoudi/Shutterstock modified by Blockworks

share

Conor Grogan, head of product business operations at Coinbase, said he has managed to locate $322,000 belonging to an individual who lost their life savings in a hack four years ago.

Grogan shared his findings on Twitter, explaining in a thread that during his investigation, he came across a “rich list” of Ethereum Classic (ETC) wallets that had “never touched their ETC balances.”

The Ethereum blockchain underwent a hard fork in 2016, resulting in the creation of ETC. Those who held ether (ETH) during the fork would have received an equal amount of ETC, but many people were unaware of this, according to Grogan.

Going through the list of accounts, Grogan said he was able to identify around 20 addresses holding more than $250,000 worth of ETC.

The next challenge lay in tracking down the owners. Traditional methods, such as tagging, were not particularly effective for 2016-era Ethereum. He noted that activities “that doxes people,” such as Ethereum Name Service, NFTs, and even Twitter, were limited at the time.

Grogan said he encountered “a number of dead ends” as many users had sent their entire balances to exchanges, leaving no digital trail to follow. 

Though the executive said he stumbled upon an address beginning with “0x475” that contained an unfamiliar crypto called “EOSDAC.” He later discovered holders of EOSDAC had received an airdrop on the Ethereum network in 2018 after registering their ETH addresses.

Blockworks was able to independently verify the address containing 16,999 ETC. 

By using the airdropped amount and the snapshot date, Grogan tweeted he was able to successfully connect the address to an EOS wallet linked to a $7.7 million hack back in 2019. 

“It turns out that the owner of 0x475 had their life savings stolen by a hacker in 2019 and was in a legal battle with their cybersecurity provider as well as with Bitfinex,” he said.

Grogan later managed to obtain the owner’s legal name associated with the ETH address after combing through legal filings. 

“I now had a doxxed name to link with the ETH address.”

Following his discovery, Grogan reached out to the wallet owner, who expressed astonishment, claiming they had no knowledge of the existence of the funds. 

Grogan declined an opportunity to be interviewed citing restrictions on discussing details with the media. 

The owner of the funds appears to have moved the recovered coins to a new wallet as of Thursday afternoon.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Research Report Templates (3).png

Research

South Korea is emerging as one of the most important global hubs for regulated digital assets, and Upbit sits at the center of this shift. Naver’s proposed acquisition could create the country’s dominant super app for payments, trading, and digital finance. This report breaks down the numbers, the regulatory tailwinds, the economics of the deal, and why the merger may unlock one of the most attractive asymmetries in Korea’s public markets.

article-image

Lido unveils a new buyback plan while BTC treasury companies slip below mNAV — can either model can truly return value?

article-image

If financial nihilism has driven you into memecoins, zero-day options, and sports betting, consider financial optimism instead

article-image

A new Sui-based protocol promises to unlock Bitcoin’s idle liquidity and eliminate wrapped-token risk

article-image

Could blockchain rails finally realize Ted Nelson’s non-linear, pro-creator “docuverse”?

article-image

What does Uniswap’s proposal to activate protocol fees and unify incentives mean for UNI token holders?

article-image

A recent mistrial illustrates how juries need more background information when it comes to judging complex systems like Ethereum