"Vendors should close all known security holes, whether publicly discussed or not. The idea behind this is that any existing security vulnerability should be closed to strengthen the product and protect consumers. Sounds great, right?"

"The reader wrote to say that his company often sits on security bugs until they are publicly announced or until at least one customer complaint is made. Before you start disagreeing with this policy, hear out the rest of his argument."

Article Link: http://www.infoworld.com/article/07/05/11/20OPsecadvise_1.html