If we are talking DNS (domain name system), then we are talking risk. Using the internet to do business is a risk, an acceptable one for most, but still a risk. And the assumptions we make about business resilience when using cloud services, and the internet in general, create more risk and erode resilience.
To do business resilience well, you need to understand risk management. To do risk management, you need quality risk assessments. To do a quality risk assessment, you need to truly understand threat and vulnerability.
