Security of wireless networks and wireless communications, including enterprise Wi-Fi, Bluetooth, Zigbee, LoRaWAN, 4G/5G, and radio technologies. Covers WPA2/WPA3 configurations, 802.1X/RADIUS authentication, VLAN segmentation, rogue access points, evil twin, deauthentication, man-in-the-middle, 802.11 protocol analysis, wireless penetration testing, and monitoring with WIDS/WIPS.