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WEP → WPA → WPA2 → WPA3

Simple

25 years of WiFi security evolution

WiFi security has evolved through four generations, each responding to attacks on the previous. The core challenge: authenticate the user and protect the traffic without requiring a public key infrastructure (no certificates, no CA needed).

Every generation uses a pre-shared key (passphrase) or enterprise credentials — the evolution is in how that key is used to derive encryption keys.

Packets in motion — click to inspect:

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