As modern infrastructures get more complex everyday, DevOps teams have a hard time tracking infrastructure drift. Driftctl is a free and open source CLI that catches drift outside of Terraform. Despite inevitable manual changes and despite the best GitOps process, some actions from authenticated apps and services will trigger unexpected changes to infrastructure. The multidimensional problem is a costly toil with a productivity impact for Dev Ops teams that need to fix issues on a regular basis. There are still a wider the list of issues related to it related to DevSecOps teams.
Source: https://www.helpnetsecurity.com/2021/05/13/infrastructure-drift-devsecops/