Originally Posted by RiverOfIce
To be honest, you don't understand security that well. I am not insulting you, but point out the problem.
It really does not matter if your are rooted or not, that just does not matter. It also does not have to have your "express permission" to do install. In fact, one of the best parts of the current batches of malware, is they do not need you to do anything. I have seen some malware that installs by getting permission from you turning up the volume.
The best way to have a secure device is to treat your phone like a 5 year old. If you would not allow a 5 year old to do it, then you should not allow your phone to do.
Would you allow your 5 year old child to take candy from strangers?
Would you send your 5 year old child into a adult store?
Would you allow your 5 year old child randomly eat anything they find on the ground?
Then you should not let your phone do it.
But your "I have it locked down like fort knox" idea of manly security is going to bite you in the bottom. Most of the security problems we are going to face in the next 30 years are going to get into fort knox not by busting in the front door, but by social engineering.
Which means you need a phone less like "fort knox" and more like a public library.