Securing diverse and often unmanaged IoT devices requires specialized capabilities beyond traditional firewall features. Palo Alto Networks offers a dedicated IoT Security subscription (often tightly integrated with NGFWs/Prisma SASE) that leverages cloud-based machine learning and threat intelligence to profile devices, identify risks, and generate recommended policies. Option A is useful for identifying known applications but struggles with the vast, unknown IoT device landscape. Option B is for user authentication, not device identification or behavior analysis. Option D and E are for general threat and web filtering, less effective at identifying the devices themselves or their specific risky behaviors within proprietary protocols. The IoT Security subscription is the specialized solution for this challenge.