A network security key is the password used to connect a device to a Wi-Fi network. It may also appear as a Wi-Fi password, WPA key, WPA2 passphrase, or wireless key. When a person needs to add a new laptop, phone, smart TV, printer, or guest device to Wi-Fi, finding this key is often the fastest path back online.
TLDR: A network security key can usually be found on a device that is already connected to the Wi-Fi network. On Windows, it appears in the wireless adapter’s security settings; on Mac, it is stored in Keychain Access. Android and iPhone can display saved Wi-Fi passwords on newer versions, while routers often show the default key on a label or inside the router’s admin page. If the key was changed and cannot be recovered, the router may need to be reset and configured again.
What Is a Network Security Key?
A network security key is the password that protects a wireless network from unauthorized access. Most modern routers use WPA2 or WPA3 encryption, which helps keep network traffic private. If the wrong key is entered, the device cannot connect to the Wi-Fi network.
The key may be printed on the router, saved on a computer or phone, or set manually by the internet service provider, homeowner, or office administrator. It is different from the router admin password, which is used to log in to the router’s settings page.
How to Find a Network Security Key on Windows
On a Windows computer that has already connected to the Wi-Fi network, the saved key can be viewed through network settings.
- Open the Start menu and search for Control Panel.
- Select Network and Internet, then choose Network and Sharing Center.
- Click the active Wi-Fi network name next to Connections.
- Select Wireless Properties.
- Open the Security tab.
- Check Show characters to reveal the network security key.
Windows may request administrator permission before displaying the password. If the computer is managed by a workplace or school, the user may not have permission to view it.
How to Find a Network Security Key on Mac
On macOS, saved Wi-Fi passwords are stored in Keychain Access. This is Apple’s built-in password storage system.
- Open Finder.
- Go to Applications, then Utilities.
- Open Keychain Access.
- Search for the Wi-Fi network name.
- Double-click the matching network entry.
- Check Show password.
- Enter the Mac administrator username and password if prompted.
After authentication, the saved network security key should appear. If several entries have similar names, the person should confirm that the selected item is listed as an AirPort network password or Wi-Fi password.
How to Find a Network Security Key on Android
On many Android phones running Android 10 or newer, the saved Wi-Fi password can be shared through a QR code. The exact steps vary by manufacturer, but the general process is similar.
- Open Settings.
- Tap Network & Internet, Connections, or Wi-Fi.
- Select the connected Wi-Fi network or open Saved networks.
- Tap Share, QR code, or a similar option.
- Authenticate with fingerprint, face unlock, PIN, or password.
- Read the displayed password or scan the QR code with another device.
Some Android phones show the password in plain text below the QR code, while others only display the QR code. If the password is not shown, another phone may scan the code to join the network. Older Android versions may not reveal saved Wi-Fi passwords without advanced access, so checking the router may be easier.
How to Find a Network Security Key on iPhone
On iPhones running iOS 16 or later, saved Wi-Fi passwords can be viewed directly in Settings.
- Open Settings.
- Tap Wi-Fi.
- Tap the information icon next to the connected network.
- Tap Password.
- Use Face ID, Touch ID, or the device passcode to authenticate.
- View or copy the network security key.
If the iPhone uses an older version of iOS, the password may not be visible. However, Apple devices can sometimes share Wi-Fi access between nearby trusted devices. For this to work, both devices generally need Wi-Fi and Bluetooth enabled, and the Apple ID contact details must be saved correctly.
How to Find a Network Security Key on a Router
The router is often the most reliable place to find the network security key, especially when no connected device can reveal it. Many routers have a label on the back, bottom, or side. This label may show the default Wi-Fi name and password.
Common label names include:
- Wi-Fi Password
- Wireless Key
- Network Key
- WPA Key
- Security Key
If the default key was changed, the printed password may no longer work. In that case, the current key may be visible inside the router’s admin interface.
- Open a web browser on a device connected to the router.
- Enter the router’s IP address, commonly 192.168.0.1 or 192.168.1.1.
- Log in with the router admin username and password.
- Look for Wireless, Wi-Fi, or Security settings.
- Find the current password, passphrase, or network security key.
The router admin password is not always the same as the Wi-Fi password. If the admin login is unknown, the internet provider’s app or account portal may provide access to Wi-Fi settings.
What If the Network Security Key Cannot Be Found?
If the key cannot be recovered from Windows, Mac, Android, iPhone, or the router settings, the network owner may need to reset the router. A factory reset usually restores the default Wi-Fi name and password printed on the router label.
However, this should be treated as a last resort. A reset can remove custom settings such as the network name, guest network, parental controls, port forwarding, and internet provider configuration. After resetting, the router may need to be set up again.
Tips for Managing a Network Security Key Safely
- Use a strong password: A good key should be long, unique, and difficult to guess.
- Avoid sharing it widely: A guest network is safer for visitors and temporary devices.
- Store it securely: A password manager can help keep Wi-Fi credentials available but protected.
- Update weak defaults: Default router passwords should be changed if they are short or easy to guess.
- Use modern encryption: WPA2 or WPA3 is preferred over outdated security modes such as WEP.
FAQ
Is a network security key the same as a Wi-Fi password?
Yes. In most home and small office networks, the network security key is simply the Wi-Fi password used to connect devices to the wireless network.
Can a person find the network security key without being connected?
Sometimes. The router label may show the default key, and the router admin page may show the current one. Otherwise, a device that has previously connected is usually needed.
Why does the printed router password not work?
The printed password may be the factory default. If someone changed the Wi-Fi password after setup, the label will no longer match the current network security key.
Is the router admin password the same as the network security key?
Not necessarily. The router admin password is used to manage router settings, while the network security key is used to join the Wi-Fi network.
Can the network security key be changed?
Yes. It can usually be changed in the router’s Wi-Fi or wireless security settings. After it is changed, all connected devices must use the new password to reconnect.