You're absolutely clueless.

First off, you can, in this very second, grab the entire linux kernel and browse for yourself, can't get anymore open than that. Not sure why that's not open. You can also report any problems you find (well, not you but someone else who would know how to find/report such problems).

Second, as one who runs both Linux and Windows servers I can tell you Linux wins hands down in security and my sleep value. I literally wake from my sleep at least once a week to an alert on one of our Windows servers. Linux? Total sleep and relaxation, no worries.