Linux is a multi-user operating system. What does that mean? Like all good operating systems, you can have multiple user accounts on one machine. You can also have more than one user logged in at once ...

Requiring password changes is a common security practice, and Linux systems admins can use the chage command to view and change password expiration information ...

A vulnerability in the wall command of the util-linux package that is part of the Linux operating system could allow an unprivileged attacker to steal passwords or change the victim's clipboard.