This is a pretty broad question that covers a number of application levels and environments so there isn't necessarily a one-size-fits-all answer. (Then again, when it comes to app security, there probably never is).
The definite starting point is static code analysis or application security software tools to scan your source code for potential security vulnerabilities and provide feedback on how to remediate them. They can be integrated into your development pipeline to catch issues early in the process, both enforcing and validating policies that you configure.
Infrastructure as code tools (Red Hat Enterprise Linux, HashiCorp Terraform, for example) enable you to define your infrastructure in code and manage it through version control. That way, you validate that your infrastructure meets security requirements before it is deployed and ensure that changes to the infrastructure are properly audited.
Another (likely) necessity on the cloud side is a cloud security posture management (CSPM) tool to monitor your cloud infrastructure for security risks and provide recommendations for remediation.
If your environment includes containerization, container security tools scan your container images for vulnerabilities and provide recommendations for fixes. Integrating container security tools into your CI/CD pipeline can help ensure your containers are secure before they are deployed.
Basically, you're going to need tools at each level if you're going to validate and enforce app security requirements consistently and reliably, and if you have any thoughts of scaling things.
This is a pretty broad question that covers a number of application levels and environments so there isn't necessarily a one-size-fits-all answer. (Then again, when it comes to app security, there probably never is).
The definite starting point is static code analysis or application security software tools to scan your source code for potential security vulnerabilities and provide feedback on how to remediate them. They can be integrated into your development pipeline to catch issues early in the process, both enforcing and validating policies that you configure.
Infrastructure as code tools (Red Hat Enterprise Linux, HashiCorp Terraform, for example) enable you to define your infrastructure in code and manage it through version control. That way, you validate that your infrastructure meets security requirements before it is deployed and ensure that changes to the infrastructure are properly audited.
Another (likely) necessity on the cloud side is a cloud security posture management (CSPM) tool to monitor your cloud infrastructure for security risks and provide recommendations for remediation.
If your environment includes containerization, container security tools scan your container images for vulnerabilities and provide recommendations for fixes. Integrating container security tools into your CI/CD pipeline can help ensure your containers are secure before they are deployed.
Basically, you're going to need tools at each level if you're going to validate and enforce app security requirements consistently and reliably, and if you have any thoughts of scaling things.