Theft of keys affected Gmail and Hotmail

Yahoo! admitted that hackers stole more than 450 thousand accounts of one of its services, which are key users of other companies.

The site explained that hackers exploited a security weakness in their computer systems. Data theft, reported earlier, affects 453,491 users. The firm said Rapid7 a data file published on the website and writings contained unencrypted passwords to log on Yahoo! and other Internet services, including Gmail, AOL, Hotmail, MSN and Live, Microsoft.