I have a very basic and simple question about two security concepts.
Both encryption and access control are used for privacy and to prevent unauthorized users from accessing some object (eg. files, processes, etc.).
What is the difference in practical environments? When do we use encryption and when do we use access controls (eg. ACL, RBAC, etc.)?
For example, I can encrypt one file to prevent unauthorized access, but I could also use an ACL method for this.