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Regularly update wireless access points to patch known vulnerabilities. For more information, you can view the official source code on GitHub The Most Popular Penetration Testing Tools in 2026

Fern is outdated for modern professional assessments. Hashcat can crack an 8-character complex password in hours via GPU, whereas Fern might take days on a CPU. Furthermore, Fern lacks support for PMKID attacks —a newer method that captures a hash without a client deauth. fern-wifi-cracker

: In some cases, the tool may hang during the de-authentication phase. Community members on Ask Ubuntu suggest verifying that your wireless adapter supports monitor mode and is correctly recognized by the software. Usage and Safety Regularly update wireless access points to patch known

One of the most tedious parts of WiFi hacking is waiting for a device to connect to a network to capture the handshake. Fern automates this entirely. If no clients are connected, Fern can perform a "deauthentication attack" (using aireplay-ng in the background), which forces connected devices to disconnect and immediately reconnect. This forced reconnection triggers the handshake, which Fern captures automatically. Furthermore, Fern lacks support for PMKID attacks —a