Modern cloud-native applications - and the DevSecOps culture and practices used to manage them - introduce a fresh layer of challenges to the already thorny topic of security measurement. Historically, security has been typically measured on a regular but intermittent basis, at particular points in time. However, the pace of change at modern, cloud-native organisations, who've implemented DevSecOps and/or CI/CD, is relentless. Many deployments might be made in a single day, and the security posture of businesses might thus change dramatically over that time.