https://www.bleepingcomputer.com/news/security/wifi-protocol-flaw-allows-attackers-to-hijack-network-traffic/

Cybersecurity researchers have discovered a fundamental security flaw in the design of the IEEE 802.11 WiFi protocol standard, allowing attackers to trick access points into leaking network frames in plaintext form.

WiFi frames are data containers consisting of a header, data payload, and trailer, which include information such as the source and destination MAC address, control, and management data.