Keychain Access is the macOS built-in password management app. It stores your passwords and account information so that you have fewer passwords to remember and manage.
When you access a website, email account, network server, or other password-protected item, Keychain Access offers to remember or save the password. If you choose to save the password, it’s saved in your keychain so you don’t have to remember or type your password every time.
The NordVPN app stores your account password in the keychain for safety and convenience. Every time you connect, our app will access the keychain for your password, and you may get a prompt to enter your keychain password. The keychain password usually matches your device password, unless you have changed it.
If you want to skip the prompt in the future, enter the password and click Always allow.