Sucuri Security is a free plugin to all WordPress users. It’s a security suite that compliments your existing security posture. Currently owned by GoDaddy, here are the issues Sucuri addresses:
- Security Activity Auditing
- File Integrity Monitoring
- Remote Malware Scanning
- Blocklist Monitoring
- Effective Security Hardening
- Post-Hack Security Actions
- Security Notifications
- Website Firewall (premium)
- Cache-Control header administration
