Response and answer in 100 words or more.
One important item in our policy states that anytime you step away from your computer, it must be either locked or you must log out. I cover this in Initial and annual training. We still occasionally have staff leave their computer without locking it.
Depending on the type of environment you work in, it may or may not be acceptable to leave your computer unlocked if you are just getting up to answer the phone or retrieve your paper from the printer.
I remind staff that we are in a prison, and of the importance of being alert and prepared at all times. A staff member may get up to answer the phone a few feet away, and in the blink of an eye — right outside the window is an inmate assaulting someone. At that point the staff runs outside to assist, and there is their computer unlocked. And, who knows if this was a real disturbance, or a plan to distract the staff member so another inmate can gain access to the system.