A security breach at a Coinbase-linked bank earlier this month exposed the sensitive personal information of more than 150 of the exchange’s customers.
The incident happened on July 11th and impacted a third-party bank that Coinbase uses to process payments, according to a data breach notification published on the Maine Attorney General’s website.
In a sample letter to customers that Coinbase provided in the Maine notification, the exchange explains that the bank mistakenly uploaded a file containing transaction data and personal information to an external location where it could have possibly been looted by an unauthorized party.
“The bank’s investigation to date has not reflected that the file was in fact accessed by an unauthorized third party, nor has the investigation identified any indication of identity theft or fraud in relation to this incident. Again, this incident only impacted the bank’s systems.”
Coinbase says in the letter that potentially exposed personal information includes the customers’ names, bank account numbers, and bank routing numbers.
The exchange notes that it has been assisting with the bank’s forensic investigation. The bank has also reportedly notified law enforcement.
Coinbase previously suffered a massive data breach in 2021, when hackers gained access to more than 6,000 customer accounts.
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