Crypto exchange Coincheck says it suffered a data breach, which may have exposed some users' personal information

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Japanese cryptocurrency exchange Coincheck announced on Tuesday that it suffered a data breach, which may have leaked users’ emails and personal information.

The information includes name, registered address, birth date, phone number and selfie ID, said Coincheck. The breach affected around 200 customers who made email inquiries from May 31 to June 1, the exchange added.

Giving details of the breach, Coincheck said a third party unauthorizedly accessed its domain registration service and “fraudulently” accessed customer emails. The domain registration information has since been amended and there is “no impact on customers’ assets at this time,” said Coincheck.

As a result of the breach, the exchange has suspended its crypto remittance service, while other services such as trading, deposits and withdrawals remain active.

Last month, crypto lender BlockFi also suffered a similar data breach, which affected some of its retail clients. The breach lasted for "about an hour" and did not impact customer funds, BlockFi said at the time.

As of Coincheck, the exchange has previously suffered the biggest hack in crypto's history. In January 2018, Coincheck lost nearly $500 million in digital tokens. Japan-based online brokerage firm Monex Group later acquired Coincheck for $33.5 million, and the exchange is now a licensed entity.

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Yogita Khatri is a senior reporter at The Block and the author of The Funding newsletter. As our longest-serving editorial member, Yogita has been instrumental in breaking numerous stories, exclusives and scoops. With over 3,000 articles to her name, Yogita is The Block's most-published and most-read author of all time. Before joining The Block, Yogita wrote for CoinDesk and The Economic Times. You can reach her at [email protected] or follow her latest updates on X at @Yogita_Khatri5.

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