I have an ssh honeypot analyzer at longtail.it.marist.edu at Marist College and it shows that the second most popular account after root is "admin", and that the most common account/password tried is ubnt/ubnt.
Anybody who's been paying attention knows that default passwords on home routers are high on the bad guy's list of accounts to hack.
A) It should only update bash
B) Also run yum -y update bash
C) This has been discussed for years, and the general consensous has always been it's better to not patch their systems (allthough I disagree with that. If you left your system open, you're just asking for somebody else to patch it for you, IMHO)
The email attributed the piece to "Colonel L. Caudill USMC (Ret)." We did some research and found that apparently there is no Col (or Major) L. Caudill USMC (Ret). Rather it appears that the essay was written by Marko Kloos and posted on his blog on March 23, 2007. You can read more of his essays by clicking here. Unfortunately there are none posted after July, 2008. But if you like the essay above you will also find this one interesting, particularly if you are in the market for a handgun. And there are other gun related pieces on Marko's blog you will likely be interested in.
Take a look at google for more details
All great ideas are controversial, or have been at one time.