The company is also investing in anti-fraud technologies and plans to open a new U.S.-based support center to strengthen its defenses against similar attacks in the future. Financially, Coinbase estimates the costs related to addressing the breach could reach up to $400 million, factoring in remediation efforts and customer compensation. The incident has also impacted Coinbase's stock price, which dropped over 6% in morning trading following the announcement. This investigation adds to Coinbase's ongoing regulatory scrutiny, including a separate inquiry by the SEC into past disclosures about user numbers. Both Coinbase and the DOJ have declined to comment further on the probe as it continues.