Failed To Crack Handshake Wordlist-probable.txt Did Not Contain Password

During an authorized penetration test, a four-way handshake was successfully captured from a target WPA2-protected network. The handshake file (captured in .cap or .pcap format) was then processed through aircrack-ng and hashcat using the probable.txt wordlist — a widely used password dictionary containing millions of common passwords, leaked credentials, and word variations.

Despite the wordlist’s comprehensiveness, both tools returned the same result:

Failed to crack handshake

Further investigation confirmed that the wordlist probable.txt did not contain the actual network password. During an authorized penetration test, a four-way handshake

With hashcat, you can apply mutation rules to probable.txt:

hashcat -m 22000 handshake.hc22000 -a 0 probable.txt -r best64.rule

Rules add 1, !, capitalize letters, append years, etc. This often cracks passwords that are close to common ones. Further investigation confirmed that the wordlist probable

This is the most deceptive cause. Your tool said "Handshake caught," but that does not equal "Handshake usable."

Common handshake corruption issues:

How to test the handshake validity:

Do not trust the initial "Handshake caught" message. Use the -W flag (if using aircrack) or convert the file to hccapx format. Rules add 1 ,

Best practice:

cap2hccapx yourcapture.cap output.hccapx

If cap2hccapx returns a warning about "missing nonces" or "zero handshakes," your handshake is useless. The error message you see is actually a symptom of a bad handshake combined with a wordlist scan.