The Virtual Next-Generation Application Firewall is a consolidated security appliance that provides comprehensive protection for applications. Its Intrusion Prevention System performs deep packet inspection to identify and block known vulnerability exploits and malicious network activity using signature-based detection and behavioral analysis. The Web Application Firewall component specifically secures HTTP/HTTPS traffic by analyzing web requests at the application layer to protect against OWASP Top 10 threats like SQL injection and cross-site scripting while understanding web session context and application structure.