Risks need to be revisited at regular intervals for the team to reevaluate each risk to determine when new circumstances caused its probability and/or impact to change.
At each interval, some risks may be added to the list and others taken away. Risks need to be reprioritized to see which are moved “above the line” and need to have action plans and which move “below the line” and no longer need action plans.
A key to successful risk management is that proactive actions are owned by individuals and are monitored.
(Larman, 2004)