Lenovo is being lambasted for its use of a visual search technology called Superfish, as many believe it poses a privacy problem by intercepting users' traffic to display adds. But the more serious concern is that it could be abused by hackers to attack other Lenovo laptop users.
It seems intended as adware, but is implemented in a manner that makes it extremely obnoxious and dangerous. They install a self-signed root certificate authority so they can insert ads into https traffic, and their private key has been cracked so now anyone can pretend to be them.
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