Securing Small Office Wi-Fi: WPA3 Protocols, DNS-over-HTTPS (DoH), and VLAN Segmentation
Many offices operate with all employee laptops, payment terminals, and guest smartphones connected onto a single unsegmented wireless subnet, creating severe lateral attack surfaces.
1. Deploying WPA3-SAE
WPA3 introduces Simultaneous Authentication of Equals (SAE), rendering offline dictionary attacks virtually impossible compared to vulnerable WPA2 four-way handshakes.
2. Encrypted DNS via DoH
Unencrypted DNS requests travel over plaintext port 53. Enabling DNS-over-HTTPS (DoH) shields endpoint browsing activity inside TLS sessions over port 443.
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