Are you asking for storage or transmission in the CONTAINER? What are you using for east-west container firewall? Do you have a WAF in place? What about IAM processes? What have you done thus far in DevSecOps? I cannot be specific in your question without knowing what applications and technologies that your organization is currently employing. There are many ways to segregate data in transmission, storage is a different story, so I am unclear on which you are referring.