Add some spice to your incorrect password attempts! :-) 'Sudoers is the default sudo security policy plugin in Linux; however, experienced system administrators can specify a custom security policy as well as input and output logging plugins. It is driven by the /etc/sudoers file or, alternatively by LDAP. You can define sudoers options like the insults option or several others in the file /etc/sudoers. It is set under the Defaults entries section. [...] In this article, we will explain a sudoers configuration parameter to enable an individual or system administrator to set sudo command to insult system users who enter the wrong password.' -- source: https://www.tecmint.com/sudo-insult-when-enter-wrong-password/ Cheers, Peter