Site hacked after adware blunder

Lenovo Group Ltd's website was hijacked and users were redirected less than a week after the company was criticized for pre-installing advertising software on consumer laptops that exposed users to hacking.

The company said it had restored some functionality to the site after customers reported a breach in which they saw videos of young people looking into Web cameras, with the song Breaking Free from the movie High School Musical playing in the background.

Some employee e-mails were also leaked by a hacking group called the Lizard Squad, according to postings on Twitter. The group has previously targeted Sony Corp's online PlayStation video-game network.