Sequoia Capital Managing Partner Roelof Botha was among the Coinbase Global Inc. customers whose personal information was stolen as part of a hack against the largest US crypto exchange, a person familiar with the situation said,

Instead of paying the $20 million ransom, Coinbase offered the same amount of money for information leading to the attackers.

The cryptocurrency exchange estimated preliminary expenses of $180 million to $400 million for remediation costs and voluntary customer reimbursements.