AOL Inc is urging its tens of millions of email account holders to change their passwords and security questions after a cyber attack.
The company is confirming a breach that resulted in spoofed emails from about 2 percent of AOL accounts. Spoofing is when a spammer sends out emails using your email address.
The company said it was working with federal authorities to investigate the attack, in which hackers obtained email addresses, postal addresses, encrypted passwords and answers to security questions used to reset passwords.
It said there was no indication that the encryption on that data had been broken.
A company spokesman declined to say how many email accounts are registered on its system.