Yahoo hacked, 450,000 Username and passwords posted online

Reportedly Yahoo has been hacked by unknown hacking group.  More than 450,000 usernames and unencrypted passwords have been stolen and posted. 

Following message was posted by hacking group in the document:

"We hope that the parties responsible for managing the security of this subdomain will take this as a wake-up call, and not as a threat," a note on the page said. "There have been many security holes exploited in Web servers belonging to Yahoo! Inc. that have caused far greater damage than our disclosure. Please do not take them lightly." 


Yahoo Hacked incident is indeed very serious issue and you should consider changing your password.