LONDON (AP) — Yahoo Inc. said Thursday it is investigating reports of a security breach that may have exposed nearly half a million users' email addresses and passwords.
The breach/leak has been confirmed by Yahoo and further reported .....
The New York Times reports that those credentials were used not only for Yahoo! services but to services such as Gmail, AOL, Hotmail, Comcast, MSN, SBC Global, Verizon, Bellsouth and Live.com.
Here is a link set up through Sucuri Malware Labs where you can enter your yahoo email to see if yours was one of the 400k that was breached/posted on line.