Common security mistakes

Ubuntu is designed to be secure by default, but it’s easy to accidently weaken those defenses through specific configuration choices or usage habits. This section highlights frequent errors that can expose your system to unnecessary risk, such as bypassing package verification or leaving network ports open.

Understanding these pitfalls helps you avoid common traps and ensure you take full advantage of Ubuntu’s built-in safety features.

Downloading of .debs

Unnecessarily open ports