I’m still uncertain about how Server Defender gains access to view NIC data unless all data enters the system through the NIC in your card.

Server Defender does not capture all NIC data; rather, it focuses on relevant patterns. Data from a port is only checked for validity if it corresponds to the correct port or network segments. Our approach doesn’t entail reading all parameters from the NIC card. The NIC card specifically manages data frames from the WAN network, and we concentrate on extracting key patterns. Server Defender’s efficacy in accessing the necessary data stems from its intricate architecture and utilization of diverse monitoring techniques across different OSI layers. 

In summary, Server Defender’s extensive architecture, deployment of diverse monitoring methods, and advanced AIdriven analysis empower it to achieve visibility into data across all OSI layers. This encompasses data on the ports, DMA transfers, and CPU-DMA interactions. Such a comprehensive approach equip Server Defender to offer unmatched insight into network activity and furnish robust security protection.