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New AirSnitch Vulnerability Threatens Wi-Fi Security for Billions

2/26/2026

Summary

Story summary

Recent research reveals that encryption cannot ensure client isolation due to newly identified weaknesses, termed AirSnitch.
This vulnerability affects routers from Netgear, D-Link, and Cisco, enabling unauthorized access to communications.
Wi-Fi has shipped over 48 billion devices since the late 1990s, serving about 6 billion users (70%).
Its security history includes Ethernet vulnerabilities and ARP spoofing in early public networks, prompting cryptographic protections.

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Story summary

Recent research reveals that encryption cannot ensure client isolation due to newly identified weaknesses, termed AirSnitch.
This vulnerability affects routers from Netgear, D-Link, and Cisco, enabling unauthorized access to communications.
Wi-Fi has shipped over 48 billion devices since the late 1990s, serving about 6 billion users (70%).
Its security history includes Ethernet vulnerabilities and ARP spoofing in early public networks, prompting cryptographic protections.