Originally Posted by corvette

Our admin/systems were designed to be complaint with Visa CISP regulations. Although seemingly inconvenient, one of the user authentication and password rules is:

"If a session has been idle for more than 15 minutes, require the user to re-enter the password to re-activate the terminal."

Many people are not aware that this was done to ensure compliancy with strict security rules/policies, although again, some may find it inconvenient.