Hack Wi-Fi: Cracking WPA2-PSk Using Aircrack-Ng Step 1: Put Wi-Fi Adapter in Monitor Mode with Airmon-Ng Let's start by putting our wireless adapter in monitor mode. For info on what kind of wireless adapter you should have, check out this guide . This is similar to putting a wired adapter into promiscuous mode. It allows us to see all of the wireless traffic that passes by us in the air. Let's open a terminal and type: airmon-ng start wlan0 Note that airmon-ng has renamed your wlan0 adapter to mon0 . Step 2: Capture Traffic with Airodump-Ng Now that our wireless adapter is in monitor mode, we have the capability to see all the wireless traffic that passes by in the air. We can grab that traffic by simply using the airodump-ng command. This command grabs all the traffic that your wireless adapter can see and displays critical information about it, including the BSSID (the MAC address of the AP), power, number of beaco