The Electronic Frontier Foundation:

News broke last night that Lenovo has been shipping laptops with a horrifically dangerous piece of software called Superfish, which tampers with Windows’ cryptographic security to perform man-in-the-middle attacks against the user’s browsing. This is done in order to inject advertising into secure HTTPS pages, a feature most users don’t want implemented in the most insecure possible way.

Inexcusable and egregious.

π