Wireless Networks:–

Wireless networks are computer networks that are not connected by cables of any kind. The use of a wireless network enables enterprises to avoid the costly process of introducing cables into buildings or as a connection between different equipment locations.

Methods to hack WiFi :-

1. Windows Commands : – We can get the Profiles of Wireless Networks and can extract the Password or PreShared Keys by the Command mentioned in below Screenshots. And also can export those file into our System

2. Reset the Router Manually :- Push the reset button with a pen or unfolded paperclip, hold it for about 10 seconds, and the router will reset to the factory settings.

If you’ve got a router that came from your internet service provider (ISP), check the stickers on the unit before a reset—the ISP might have printed the router and Wi-Fi key right on the hardware.

Once a router is reset, you need another password (plus a username) to access the router itself. Again, you can do this via a PC attached to the router via Ethernet—you’ll need that since the reset probably killed any potential Wi-Fi connection you had going in. The actual access is typically done with a web browser.

3. Routerpassword.com :- the router will ask for a username and password. You can check your manual, but you probably lost it or threw it away. So instead, go to RouterPasswords.com, which exists for one reason: to tell people the default username/password on every router ever created.

You’ll need the router’s model number, but that’s easy enough to find on the back or bottom. You’ll quickly see a pattern among router makers of having the username of admin and a password of password. Since most people are lazy and don’t change an assigned password, you could try those options before hitting the reset button. (But c’mon, you’re better than that—change the password when you access the router’s settings via your web browser.)

Once you’ve accessed the router interface, go to the Wi-Fi settings, turn on the wireless networks, and assign strong but easy-to-recall passwords. After all, you don’t want to share with neighbors without your permission.

Make that Wi-Fi password easy to type on a mobile device, too. Nothing is more frustrating than trying to get a smartphone on Wi-Fi with some cryptic, impossible to key-in-via-thumbs nonsense, even if it is the most secure.

4. Kali Linux Tools :- Kali linux is a Operating system which has been designed to Hack and Secure the Network and the Infrastructure. Please find the tools mentioned below

Tools used for hacking wireless networks (Sniffing Tools) :-

• Aircrack 
• AirSnort
• Kismet 
• Cain & Abel 
• WireShark
• Fern WiFi Wireless Cracker 
• CoWPatty 
• Wifiphisher 
• KisMac 
• Reaver 
  • These are the Tools we can use for Sniff the Network packet and get the Access to the Network.

Wireless Authentications :-

Securing wireless networks

It’s time to know about a few steps you can take to avoid someone hacking your WiFi. After all, you cannot become an ethical hacker without knowing how to hack and how to prevent a hack. 

• Change the default passwords that come with the hardware
• Enable authentication mechanism
• Turn off network name broadcasting
• Allowing only registered MAC addresses can restrict Access to the network.
• Using strong WEP and WPA-PSK keys as well as passwords with a combination of symbols, number and characters can reduce the chance of the keys being cracked by the use of a dictionary and brute force attacks
• Turn off Remote Management
• Firewall Software can help reduce unauthorized access
• Keep the Router Firmware Up-to-date
• Use MAC Address Filtering