I'm using Arch Linux with KDE Plasma and am still getting familiar with how user permissions are normally handled. I currently have two accounts: one intended for administrative tasks and another for everyday use. The separate-account setup is inconvenient because installing software or performing other routine maintenance requires switching accounts or logging into the administrator account in a terminal. I'm not talking about logging in directly as root. What are the actual security risks of giving my normal account sudo access? Are there meaningful advantages to using a strictly limited account for daily work and keeping a separate administrator account? I'd appreciate the practical pros and cons.
3 Answers
Using a separate account can provide defense in depth, especially on a shared or high-risk machine, because everyday applications cannot directly use sudo from that account. However, it also adds friction and does not protect against every compromise. For a single-user desktop, keeping one normal account with sudo permission is usually practical; just avoid running applications as root, inspect commands before approving them, and use sudo only when it is actually needed.
There is still some additional risk. If you approve a malicious command, or a program tricks you into entering your password and running something with sudo, it can modify or read essentially anything on the machine. Buggy software launched through sudo can also cause system-wide damage. The important distinction is that ordinary programs started from your desktop do not automatically inherit root privileges just because your account is allowed to use sudo.
Giving your normal account sudo access is the standard setup on many Linux systems. You still run your desktop applications as a regular user; sudo only grants administrative privileges for the specific command you authorize, usually after asking for your password. That’s very different from logging in and running the whole session as root. For most personal systems, a normal daily account with sudo access is a reasonable balance of convenience and security.
A separate non-administrative account can reduce the chance of accidental elevation, but it is not a complete shield. If that account can use su or otherwise authenticate as an administrator, the same fundamental risk remains whenever you provide those credentials.