Researchers have revealed a Wi-Fi attack technique called "AirSnitch" that can bypass user isolation mechanisms and perform fully bidirectional man-in-the-middle attacks without cracking WPA2/WPA3 encryption. This technique uses MAC address spoofing, port stealing, and gateway impersonation to target almost all devices using current Wi-Fi standards, and it is not protected by HTTPS encryption. The risk is especially high in public Wi-Fi environments.