With two applications running under the same user, if one is compromised, it has ready access to the other. Generally it's fairly easy to make a system user fo

With two applications running under the same user, if one is compromised, it has ready access to the other. Generally it's fairly easy to make a system user for an application if no special accesses are required - just make a custom system user for the application, and ensure it can access the various things it needs to touch (eg: logging).