Cryptocurrency exchange eXch announced it will cease operations on May 1 after reports alleged the firm was used to launder funds from a Bybit hack.

In an April 17 notice, eXch said the majority of people in its management team voted to “cease and retreat” in response to the allegations that North Korea’s Lazarus Group used the exchange to launder roughly $35 million of the funds stolen in a $1.4 billion exploit on Bybit. The exchange said it was the subject of “an active transatlantic operation” aimed at shutting it down and potentially pursuing charges.

“Even though we have been able to operate despite some failed attempts to shut down our infrastructure (attempts that have also been confirmed to be part of this operation), we don’t see any point in operating in a hostile environment where we are the target of SIGINT [Signals Intelligence] simply because some people misinterpret our goals,” said eXch.

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The exchange initially denied reports from crypto sleuths suggesting that it had laundered digital assets for the Lazarus Group, but admitted to processing an “insignificant portion of funds” from the February hack. Individuals from eXch’s management team emphasized its focus on user privacy in announcing the shutdown, claiming that some exchanges “abus[e] customers with nonsensical policies” in their attempts to fight money laundering.

The biggest hack in crypto history

The Bybit hack, one of the largest in the history of the crypto industry, resulted in more than $5 billion in withdrawals from users, including the stolen funds. CEO Ben Zhou said on Feb. 22 that the exchange had the means to “cover the loss” if the funds were not recovered. However, the firm later announced it would shutter some of its Web3 services and close its non-fungible token marketplace.

As of April 10, Bybit had regained its market share achieved before the hack: roughly 7%. The exchange paid more than $2 million to bounty hunters providing information that could be used to freeze some of the funds traceable to other platforms, which was estimated to be roughly 89% of the $1.4 billion as of March 20.

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