This tutorial provides a method for administrators to prevent specific users from logging into their website. It is designed for site owners or developers who need to restrict access without deleting user accounts, offering a reversible way to manage problematic users.

Custom Plugin Creation: The guide walks through building a dedicated plugin from scratch, ensuring the functionality integrates cleanly with the site's admin system. User Profile Integration: Adds a checkbox to individual user profile pages within the admin area, allowing administrators to ban or unban users with a single click. Login Prevention: The implemented code hooks into the site's authentication process to check a user's status, automatically blocking login attempts for banned accounts and displaying an error message. Data Management: Functions are included to save, update, and check the banned status for each user, storing the information securely as user meta data. Safety Controls: The code includes checks to prevent administrators from accidentally banning their own account, maintaining operational security.