> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/hacking-wifi/wpa-wpa2-psk-network-attacks/password-auditing/attacking-with-hcxdumptool.md).
# Wireless Capture with hcxdumptool
Capture WPA/WPA2 authentication traffic for offline analysis.
hcxdumptool captures wireless traffic for WPA/WPA2 security assessments.
The capture can contain authentication material. It does not reveal a password by itself.
### Create a capture
Start a capture on the monitor-mode interface:
```bash
sudo hcxdumptool -i wlan0mon -w Capture.pcapng
```
The command writes packet data to `Capture.pcapng`.
Use a dedicated channel whenever possible. This reduces unrelated collection.
### Validate the evidence
Confirm that the output file exists and contains authentication traffic.
Record the interface, channel, BSSID, and capture duration with the evidence.
Protect the capture as sensitive assessment data. Delete it when retention ends.
---
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