The chronology suggests the hackers could have harvested stolen passwords from visitors to the MSN site for up to three days. But their target — passwords to Lineage game accounts — lessened the significance of the break-in since the hacker software appeared not to collect any network or banking passwords.More details at MSNBC
MSN South Korea was hacked for several days

The South Korean MSN portal was hacked for several days, without anyone noticing it. Microsoft says the site contained password-stealing software because another company that operates MSN South Korea failed to apply necessary software patches, leaving the servers vulnerable to attacks.