Wireless networking has proved its
advantages over wired network, however wireless do have some
drawbacks but the advantages can easily be overcome these drawbacks.
Since WiFI is very common now a days, the user-base is very large;
home user as well as large corporations are using WiFI as their
networking mode. The security concerns have already been raised and
proved that WiFi is subject to hacking attacks; due to the security
concerns the penetration testing and auditing is viable for wifi
based networking. There are so many tools are available on Kali Linux
and other Linux distribution (if you are not using Linux then don’t
worry these tools can be installed on Windows and MAC computers) for
WiFi vulnerability scanning.

Cracking WEP in 90s

Features

• sorts targets by signal strength
  (in dB); cracks closest access points first
• automatically de-authenticates
  clients of hidden networks to reveal SSIDs
• numerous filters to specify
  exactly what to attack (wep/wpa/both, above certain signal
  strengths, channels, etc)
• customizable settings (timeouts,
  packets/sec, etc)
• “anonymous” feature;
  changes MAC to a random address before attacking, then changes back
  when attacks are complete
• all captured WPA handshakes are
  backed up to wifite.py’s current directory
• smart WPA de-authentication;
  cycles between all clients and broadcast deauths
• stop any attack with Ctrl+C, with
  options to continue, move onto next target, skip to cracking, or
  exit
• displays session summary at exit;
  shows any cracked keys
• all passwords saved to cracked.txt
• built-in updater: ./wifite.py
  -upgrade
   Download and for further study