The rapid adoption of Infrastructure as Code (IaC) reflects its transformative impact on cloud infrastructure deployment, allowing engineers to manage resources more efficiently through automated code rather than manual processes. By using technologies like Terraform and Pulumi, alongside cloud-native frameworks such as AWS CloudFormation and Azure Resource Manager, IaC enables consistent and scalable infrastructure provisioning. Shifting infrastructure management left in the development lifecycle offers opportunities for proactive cloud security, embedding security practices alongside other automated scans within CI pipelines. Tools like Bridgecrew facilitate this by scanning for security vulnerabilities and providing fixes, which can be integrated into continuous integration workflows to prevent misconfigurations in cloud environments. This approach not only enhances security but also streamlines operations by embedding consistent feedback mechanisms into the development process, ultimately benefiting speed, scalability, and cost-efficiency for cloud-native teams.