Ameya Ahir begins by emphasizing that networking and security are becoming a single, integrated architecture rather than treating security as an optional overlay. As wireless becomes the primary access layer for modern devices, many of which lack Ethernet ports, the proliferation of unmanaged client devices creates significant risk. Cisco is addressing this by focusing on secure infrastructure and network segmentation, ensuring that every piece of traffic is correctly tagged and that security policies are enforced consistently from the initial wireless connection all the way to the data center.

A major focus of the presentation is Cisco's Resilient Infrastructure initiative, which seeks to eliminate legacy protocols and insecure encryption methods like SNMPv1. Ameya explains that while transitioning away from these old standards is often slow and difficult for administrators, Cisco is facilitating the process through software updates that include CLI warnings and insecure modes. To further simplify this, Cisco's AI assistant can now audit cloud networks, identifying non-compliant devices and providing specific remediation plans for features like RadSec and multi-factor authentication. This allows even junior engineers to follow a clear path toward hardening the network against modern threats.

The session concludes with a look at the looming threat of quantum computing and the "Harvest Now, Decrypt Later" strategy used by malicious actors. Stephen Orr joins to discuss the transition to Post-Quantum Cryptography (PQC), noting that upcoming standards like 802.11bt will introduce more robust but larger security keys and certificates. While these advancements increase complexity and packet fragmentation, Cisco is working within the IEEE to introduce "security profiles" in Wi-Fi 8 to simplify cryptographic choices. The ultimate goal is to deliver an end-to-end, quantum-safe architecture that maintains backward compatibility for legacy clients while preparing for the security mandates of 2027.

Presented by Ameya Ahir, Engineering Product Manager, and Stephen Orr, Distinguished Solutions Engineer. Recorded live at Mobility Field Day 14 in San Jose, CA on May 6, 2026. Watch the entire presentation at https://techfieldday.com/appearance/cisco-presents-at-mobility-field-day-14/ or visit https://TechFieldDay.com/event/mfd14 or https://Cisco.com/ for more information.