All-In-One Security (AIOS) is a comprehensive and user-friendly WordPress plugin developed by the UpdraftPlus team, designed to enhance website security through a range of features. It offers robust login protection with tools like two-factor authentication, CAPTCHA verification, and login attempt limits to prevent brute-force attacks. The plugin includes a web application firewall that monitors and blocks malicious traffic, and content protection features to prevent unauthorized copying and spam. Additional functionalities encompass file change detection, user activity monitoring, and customizable security settings categorized into basic, intermediate, and advanced levels. With over 1 million active installations and a 4.7-star rating, AIOS provides both free and premium versions, making it a reliable choice for securing WordPress websites.