What is a risk practitioner's BEST approach to monitor and measure how quickly an exposure...

Key risk indicators (KRIs) are metrics that measure the exposure to a given risk at a particular time. They can also provide early warning signs of a potential change in risk level. By monitoring KRIs, risk practitioners can assess how quickly an exposure to a specific risk can affect the organization and take appropriate actions.

References

•Risk management at the speed of business - PwC

•Risk velocity measures how fast an exposure can affect an organization | Business Insurance