In recent weeks Dell has been found to have installed rogue certificates on laptops they sell. Not once, but twice. The security ramifications of this are grim. Such a laptop can have its SSL-encrypted connections sniffed quite easily. Dell has responded by providing uninstall instructions and an application that will remove the cert. They've apologized and that's fine... everyone makes mistakes, don't let it happen again. You can read about the initial problem in "Dell Accused of Installing 'Superfish-Like' Rogue Certificates On Laptops" and the re-occurance in "Second Root Cert-Private Key Pair Found On Dell Computer"
And here is why I don't care.