I forgot the Password for WPA/WPA2 Personal where can I get it

Solution 1:

1. Open the Keychain Access app (located in the Utilities folder, within the Applications folder).
2. In the search box (upper right corner), type in the name of your Wi-Fi network.
3. Double click the corresponding entry in the main panel. If there is more than one, look for the most recent one with a type matching "AirPort network password".
4. Click the checkbox labelled Show password, and enter your user account password when prompted. The password will be displayed in the text box, where you can copy it as needed.

Solution 2:

As a last resort, you can reset your WLAN to factory settings and put in a new password of your choice...

Solution 3:

If you have Cydia on your iPhone, iPod or iPad you can download "WiFi Passwords" from Xsellize repo. Its free and it will show you all your stored WiFi networks you've been connected to along with their associated passwords.

Is not hacking, is just reading the stored information stored in your iPhone, iPod or iPad.