Given that our IT completely failed to secure our networked storage, I wouldn't be so sure. (Our CEO was a stereotypically loud Italian guy, and he was the calmest I had ever seen him when I showed him that I could access all his files. I wish I could have been there when he went to have a polite chat with IT about that...)

Another time, IT put an electronic lock on the door to the server room. One day that lock (and all the other electronic locks in the building) wouldn't open. It turned out that the computer controlling the locks had frozen up, but it was in the server room so they couldn't get in to reset it. They ended up having to take the door off of its hinges.

Or when I got laid off (the start-up's money ran out so half of the employees were, including the former CEO) and someone told my very embarrassed boss to follow me around while I went to get my stuff. You gave me keys to the building and root access to the R&D machines. You were shipping with the firmware image I made. But now you were worried that I was the vengeful sort?