Ubuntu, like other Linux distributions, restricts access to files and system settings by default. Each user account has read and write access to its own files and read access to some system files.

The default Ubuntu permissions are kinda silly, creating homedirs that are browsable by group and other by default. Not so much of an issue with purely local users (and can also be fixed via DIR_MODE ...

App permissions is a feature that's now present in pretty much all the major mobile operating systems, but Ubuntu has the best implementation available right now. The Ubuntu operating system is one of ...