Yahoo Mail, world's largest e-mail service, has been hit by a virus:
The e-mail virus, or worm, has been dubbed Yamanner and landed in Yahoo mailboxes bearing the headline "New Graphic Site." Once opened, the message infects the computer and spreads to other users listed in Yahoo users' e-mail address books, security experts said.
The e-mail containing the virus need only be opened -- in contrast to most worms that are hidden in attachments and require users to take an additional step -- to release the virus, according to computer security site Symantec Corp. (SYMC.O: Quote, Profile, Research).
Users are advised to update their virus and firewall software and block e-mails sent from firstname.lastname@example.org. More details over at Reuters.