Protecting your website from invaders is a major goal. WPMU DEV Defender is one such plugin which will provide you with protection. It scans your website regularly for vulnerabilities and protects your website day and night. Some security measures include Brute Force Lockout, File Change Detection, Audit Logs, IP Lockout, Security Tweaks, Backups, etc. Overall this is a complete security plugin that your Wordpress website will ever need.