WordPress Security Plugins that you must have
A WordPress Antivirus to protect your blog against exploits, malware and spam injections, you can download the plugin here.
2. BulletProof Security
A WordPress Website Security Protection: Firewall Security, Login Security, Database Security… Effective, Reliable, Easy to use.
you can download this plugin here.
3. Login LockDown
Login LockDown records the IP address and timestamp of every failed login attempt. If more than a certain number of attempts are detected within a short period of time from the same IP range, then the login function is disabled for all requests from that range. This helps to prevent brute force password discovery. you can download this plugin here.
4. Acunetix WP Security
Acunetix WP Security checks your WordPress website/blog for security vulnerabilities and suggests corrective actions such as Passwords, File permissions, Database security, Version hiding, WordPress admin protection/security, Removes WP Generator META tag from core code. you can download it here.
5. WordPress File Monitor Plus
This plugin monitors your WordPress site for added/deleted/changed files. When a change is detected an email alert can be sent to a specified address. A big help when a someone changes or deleted your files. you can download it here.