XO Security is a powerful WordPress plugin designed to bolster login security for websites. It offers a range of features that help protect against unauthorized access and enhance user privacy. Key functionalities include the ability to record login attempts, limit login attempts, and implement Captcha on login and comment forms. Additionally, users can customize the login page URL, enable two-factor authentication (2FA), and receive login alerts to stay informed about account activity.

This plugin also provides options to disable login via email addresses and usernames, modify error messages, and disable XML-RPC and REST API features. It further enhances security by allowing WooCommerce login page protection, anti-spam measures, and the option to hide WordPress version information. Users should note that for WordPress multisite setups, a common login page is recommended to ensure functionality across all sites.