Yahoo hacked, passwords posted online

Internet hackers posted online what they say is the login information for more than 450,000 Yahoo users.

They say the data was released as a wake-up call.  A note warned Yahoo to take a closer look at its current security coverage. 

The breach impacted users of Yahoo Voices, an online publishing tool. Yahoo apologized Thursday and urged users to change their passwords regularly.

They said less than 5 percent of the breached accounts had valid passwords.