A network security key, also known as a Wi-Fi password, is a form of authentication used to connect to a private network. It is a code or string of characters that establishes a secure, encrypted connection between users and the Wi-Fi router and protects the network from outsiders. Most Wi-Fi networks use one of four types of network security keys: Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), Wi-Fi Protected Access 2 (WPA2), or Wi-Fi Protected Access 3 (WPA3). These types of network security keys may sound familiar because they are usually listed on routers to indicate which type of encryption is available.

To find your network security key, you can check your physical router/modem or use one of your devices that is already connected to the network. The network security key is usually printed on a sticker on the router or modem and may be labeled something other than "network security key," such as "password," "network key," "wireless password," or "WPA key". If youre using a device that is already connected to the network, you can find the network security key by going to the Wi-Fi settings and looking for the network name. Then, click on the network name and select "Show password" or "Show characters" to reveal the network security key.

Its important to keep your network security key secure and change it every few months to prevent unauthorized access to your network.