E-commerce site eBay is asking users to change their password after a cyberattack compromised a database containing encrypted passwords.
The company says there is no evidence of any unauthorized activity and there is no evidence any financial or credit card information was stolen.
EBay says its investigation is active and it can't comment on the specific number of accounts affected, but says the number could be large.
Cyberattackers stole a small number of employee log-in credentials that gave them access to eBay's corporate network. The San Jose, California-based company is working with law enforcement to investigate the attack.
The database was hacked sometime between late February and early March.
EBay owns electronic payment service PayPal, but eBay says there is no evidence PayPal information was hacked.
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