What is the need for Wireless Security?

In a Wired network, data remains in the cables that connect the end devices. But Wireless networks transmit and receive data through a broadcast of RF signals into the open air. Because of the broadcast nature that WLANs use, there is a greater threat of hackers or intruders who can access or corrupt the data. In order to alleviate this problem, all WLANs require the addition of:

1. User authentication to prevent unauthorized access to network resources.
   
   
   
2. Data privacy to protect the integrity and privacy of transmitted data (also known as encryption).