Linux is swiss cheese. Back when I had access to Vupen via a shared account the commercial product exploits had an expiration date internally called EOL (End of

Linux is swiss cheese. Back when I had access to Vupen via a shared account the commercial product exploits had an expiration date internally called EOL (End of Life) when disclosure occured. Interestingly the Linux exploits appeared to be perpetual until public disclusure. Some of them were available for over 3+ years. I always assumed it was because of some legal issues. Nobody owns Linux so there is nobody to answer to.