Crypto shares slid in Thursday trading as bitcoin dipped 1.3% to $101,926.
Canaan fell 10%; TeraWulf fell 8%; Coinbase fell 7%; CleanSpark fell 6%; Riot Platforms fell 5%; Strategy fell 4%; MARA Holdings fell 3%.
Coinbase Global, Inc. expects to pay $180M-$400M in reimbursements and remediation after a recent data breach exposed sensitive customer information and led to users being tricked into sending funds to the attackers, it said on Thursday.
On May 11, the crypto exchange "received an email communication from an unknown threat actor claiming to have obtained information about certain Coinbase customer accounts, as well as internal Coinbase documentation, including materials relating to customer-service and account-management systems," it disclosed in an SEC filing.
The attackers allegedly paid overseas support staff to gain internal access and gather customer data. Coinbase noted it has already flagged and fired those involved.