In Wi-Fi hacking, we capture the 4-way handshake packet and look for the encrypted key in those packets. When a user authenticates through the Access Point the user and the Access Point have to go through a 4-way Handshake in order to complete the authentication process. WPA PSK 2 has a vulnerability which is that the password in the encrypted form is shared by means of a 4-way handshake. When it comes to security nothing is 100% flawless and so as with WPA PSK 2. This WPA 2 uses a stronger encryption algorithm which is known as AES which is very difficult to crack. These days the Wi-Fi networks are more secure than the older days, These days most wireless access points use WPA(Wi-Fi Protection Access) 2 Pre Shared Key in order to secure the network.
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