Next-Generation Firewall (NGFW) by Palo Alto Networks is a comprehensive network security platform that combines hardware, virtual, and containerized firewall capabilities. Operating across public, private, and hybrid cloud environments, it provides threat prevention and security controls through machine learning, deep learning, and artificial intelligence technologies. The platform performs Layer 7 inspection and implements security policies based on applications, users, and content while providing protection against both known and unknown threats. NGFW integrates with PAN-OS and can be managed through Panorama or Strata Cloud Manager for centralized control. The solution incorporates inline deep learning capabilities for real-time threat detection, enabling secure network access control through application awareness, user identification, and content inspection. It supports post-quantum cryptography and integrates natively with SD-WAN capabilities for secure branch connectivity.