'Spyware' brings world of woes to Lenovo

Lenovo Group Ltd's removal of pre-installed software that made its devices vulnerable to cybertheft was not enough to head off lawsuits from angry customers and ridicule from its largest competitor.

Although Lenovo announced about a week ago that it would pull the controversial third-party advertising program, called Superfish, from its laptops, the world's largest personal computer maker may still need to explain how it fumbled the thorny issue of information security.

The Beijing-based PC giant is facing at least one class-action lawsuit in the United States because of Superfish, multiple sources have reported.