Hacking Wireless Networks

WIFI is developed on IEEE 802.11 standards and is widely used in wireless communication. It provides wireless access to applications and data across a radio network



Wireless network technology is becoming increasingly popular but, at the same time,it has many security issues. A wireless locol area network allows workers to access digital resources without being thethered to thier desks



Wireless network technology is becoming increasingly popular but, at the same time,it has many security issues.


Connecting to a network no longer requires an ethernet cable data packets are airborne available to anyone with ability to intercept and decode them several reports have explained weakness in the wired equivalent privacy algorithm by 802.11x standard to encrypt wireless data.


As a security administrator of your company you must protect the wireless networks from hacking

is a security administrator of your company you must protect the wireless networks from hacking


Computer network that is wireless and is commonly associated with a telecommunities network whose interconnections betweens nodes are implemented without the use of wires


wireless telecommunications between nodes are implemented without nodes the use of wires remote information transmission system that uses electromagnetic waves such as  radio waves for the carrier.



wireless telecommunications between nodes are implemented without nodes the use of wires remote information transmisssion system

The implementation usally takes place at the physical level or layer of the network



Types of Wireless Networks


  • Extension to a Wired Network
  • Multiple  Access Points
  • LAN to LAN Wireless Network
  • 3G/4G Hotspot

Wireless Terminologies 


  1. GSM
  2. ISM Band
  3. Association
  4. Bandwidth
  5. BSSID
  6. Direct sequence spread spectrum
  7. Hotspot
  8. Frequency hopping spread Spectrum
  9. Access Point
  10. Orthogonal Frequency division Multiplexing 

WI-fi Chalking

WAR WALKING

Attackers walk around with wi fi enabled laptops  to detect open wireless networks

WAR FLYING
In this technique attackers fly around with wi fi enabled laptops to detect open wireless networks

WAR CHALKING

A method used to draw symbols in public places to advertise open wi-fi networks

WAR DRIVING
Attackers drive around wi-fi enabled open wireless networks


Types of Wireless Antennas 

Directional Antenna

Used to broadcast and obtain radio waves from a single direction

Omni directional Antenna

Omnidirectional antennas provide a 360 degree horizontal radiation pattern.it is used in wireless base stations

Parabolic Grid Antenna

It is based on the principle of a satellite dish but it does not have a solid backing, they can pick up Wi-fi signals ten miles or more.


YAGI ANTENNA


Yagi is a unidirectional antenna commonly used in communication for a frequency band of 10 MHZ to VHF and UHF

DIPOLE ANTENNA

Bidirectional antenna,used to support client connections rather than the authentication

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