On a Mac, your passwords are stored in the Keychain Access application, which is a built-in password management system designed to securely store and manage your passwords and other sensitive information. The Keychain Access application can be found in the Applications > Utilities folder on your Mac.When you create a new account, log in to a website, or make a purchase online, your Mac will prompt you to save the password to your keychain. Once saved, you can easily access the password by opening the Keychain Access application and searching for the specific website or account.The Keychain Access application also allows you to create new keychains, edit or delete existing ones, and set preferences for how your keychains are managed.It's important to note that the Keychain Access is protected by a master password, which is the password you use to log in to your Mac. Without the master password, no one will be able to access your keychains and passwords, so it's essential to remember or to store it in a safe place.In addition, The iCloud Keychain is another built-in password manager that stores your passwords and credit card information securely and syncs them across all your Apple devices, including your Mac, iPhone, iPad, and Apple Watch. If you choose to use iCloud Keychain, your passwords will be stored in the iCloud and you can access them from any of your Apple devices.In conclusion, On a Mac, your passwords are stored in the Keychain Access application, which is a built-in password management system designed to securely store and manage your passwords and other sensitive information. The Keychain Access application allows you to create new keychains, edit or delete existing ones, and set preferences for how your keychains are managed. Additionally, The iCloud Keychain is another built-in password manager that stores your passwords and credit card information securely and syncs them across all your Apple devices. It's important to remember or store the master password for the Keychain Access application as it's essential to access your keychains and passwords.