Comment by dvdkon

You should worry, system users are relied on to effectively separate privileges even in "single-user" desktops. This has led to privilege escalation before, not to mention the potential for browsers to access these ports [0].

That said, a random password should be enough protection, even if it isn't the cleanest solution.

[0]: e.g. https://palant.info/2020/06/22/exploiting-bitdefender-antivi...