A family of wireless networking technologies based on IEEE 802.11 standards, enabling devices to connect over a local area network (LAN) using radio frequency bands (2.4 GHz, 5 GHz, and 6 GHz). WiFi supports various security protocols, including WPA2 and WPA3, and operates with modulation techniques like OFDM (Orthogonal Frequency-Division Multiplexing) for high-speed data transfer.