AirSnitch flaw breaks Wi‑Fi client isolation across homes and enterprises

Researchers call AirSnitch a cross‑layer Wi‑Fi attack that undermines client isolation at Layers 1–2, enabling bidirectional man‑in‑the‑middle traffic across guest networks, home, and enterprise setups. The technique can intercept and alter traffic, steal cookies and credentials, and DNS data, potentially even when HTTPS is used. It affects a wide range of devices from major vendors and may require hardware changes; some updates exist, but the recommended defenses include VPNs and moving toward zero‑trust networking. In practice, users should be cautious on unknown public APs and consider tethering via mobile data or trusted VPNs until fixes are widely deployed.