An uncertain event or condition that, if it happens, has a positive or negative impact on a project’s objectives is recognized as:

The PMBOK® Guide defines risk as an uncertain event or condition that, if it occurs, has a positive or negative effect on a project’s objectives. A workaround is put into action for an unidentified negative risk that has occurred. An issue can be described as a negative risk or event that is occurring in the present. A trigger, or risk trigger, is an event that signifies a risk is about to materialize.