Investing.com -- The U.S. Department of Justice is investigating a recent cyberattack on Coinbase Global (NASDAQ: COIN ), the world’s largest cryptocurrency exchange, as reported by Bloomberg on Monday. The breach was first announced by the company last week, following receipt of an email from an unidentified threat actor on May 11. The anonymous individual claimed to have access to certain customer accounts and internal documents.

Coinbase has estimated the potential financial impact of the breach to be between $180 million and $400 million. The investigation by the Department of Justice, specifically its criminal division in Washington, is focusing on understanding the circumstances surrounding the breach, the report said, citing a source familiar with the situation.

Despite the breach, Coinbase has assured that while some data was stolen, including names, addresses, and emails, the attackers did not gain access to login credentials or passwords. Both Coinbase and the Department of Justice have yet to respond to requests for comment regarding the investigation.

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