The constant barrage of UAC requests, basically limits the benefit for those that actually need protecting, because they will quickly numb to the process and nearly autoclick for anything that asks.
Hi,
I used to operate in a UAC = OFF mode for a long time, until I discovered (thanks to Brink) that IE8 Protected Mode is also tuned OFF. Since all my banking and share trading is done on-line, I considered this an unacceptable risk. I'm now a convert to keeping UAC turned ON.
Regarding the quoted statement, my experience is that I always take a few seconds, mostly less, to actually read the UAC pop-up before clicking "OK", or not if that is the case. This means I am far more aware of what is about to execute, and that means the fundamental component of any secuirty system, my own decision making process, is functioning at peak performance.
The UAC is actually a very smart pyschological tool : it interacts with the human brain at a very basic level. The human brain struggles to process multiple commands/inputs similtaneously : if it is overloaded with information, it becomes extremely poor at processing or reacting to input : in laymans speak, it makes bad decisions. It has been shown that the brain can only process the so-called "7 units of information" at a time, and its very little indeed (essentially one thing at a time).
To illustratre the point, think about it this way : you and your girlfriend are walking down the street after nice meal, the atmosphere is relaxed and you have had a good time. You are engrossed with each others company talking about the excellent time you have just had. Its a quiet and dimly lit street. Approaching you from the other direction is a large man, dressed in a black trench coat, head down and covered with a large hat. He is walking fast, directly at you. As he approaches you he whips back his trench coat....only to produce his mobile phone to call for a taxi since he is late for an appointement. How do you react in the instant that this man whips back his trench coat?
This is an example from a pyschology course I attended recently : all respondents to this question agree that your relaxed mood immediately evaporates and you go on edge expecting the worst. This is the classic "fight or flight scenario". Your brain has immediately re-focused itself on the apparent danger this stranger represents to you - all your nice relaxing thoughts and conversation with your girlfriend immediately cease to exist as your brain refocuses its limited processing capability to ensure your survival. The brain is excellent at self preservation. This is a basic human trait we inherited from the very first humans thousands of years ago - our brain learnt to adapt to ensure our survival when humans were at the bottom of the food chain. It's a genetically enherited trait, that even today when we are at the top of food chain, is still very much in action : sneak up behind your girlfriend when she isn't ware you are there and startle her. Her reaction is the brains response to ensuring its survival : it perceives the situation as being threatining, and acts appropriately.
UAC in many respects works the same way. It focuses your attention to one thing, and one thing only : the potential danger that exists by clicking that "OK" button. It diverts all your attention away the distractions, by dimming the screen and placing that pop-up right in front of you, and forcing your brain to focus its "7 units" on the "fight (clicking OK) or flight (clicking Cancel)" decision you need to make to proceed.
If you can understand how your brain processes information, and how its primary purpose is self preservation, and that it is very good at doing that, you will come to appreciate that UAC is actually a very good thing to have.
Its a long read, but I hope it helps.
Regards,
Golden