(1) A sound or message that indicates some predefined event has occurred or a selected operation is about to be performed. The terms "alert" and "alarm" are sometimes used synonymously; however, an alert is more of a warning in advance, whereas an alarm signals that the event or error has occurred. See
alarm.
(2) A document with urgent information about a threat or vulnerability such as CIAC Bulletins at http://ciac.llnl.gov/ciac/CIACHome.html.