Do Not Disturb is an open-source utility designed for Mac users to detect unauthorized physical access attempts to their devices. This tool is specifically aimed at safeguarding against 'evil maid' attacks, where an attacker gains physical access to a computer to compromise its security. It serves as an essential layer of protection for users who are concerned about the security of their sensitive information.

The program operates by monitoring specific indicators that signal unauthorized access attempts. Users can configure alerts and notifications to stay informed about any suspicious activities. As a free tool, Do Not Disturb is accessible to a wide range of users, making it an ideal choice for those seeking to enhance their device’s security without incurring additional costs.