A keychain password is the master password for Mac's "Keychain Access" program, storing your login information for websites and online accounts. You may need your keychain password to access one of these websites when your Mac requests your login credentials.
If you forgot the keychain password or need to change your keychain password, you can reset your keychain password. Using the Keychain Access password manager app, which comes preinstalled on your Mac, you can safely store all of your usernames and passwords.
You will be able to create strong passwords for every website without remembering them individually if you use a password manager. Keychain Access is a great way to protect your data.
About Keychain Password
If you use the same user password to log in to your computer, this password will be the same. However, it is possible that the keychain and the passwords of individual users could become out of sync. In such a case, you can use the software. Any time you change your Mac keychain password, even if you don't know it, you can do so.
The problem is that even if you've never used Keychain Access on your Mac, your computer may start bothering you for your "keychain password" - the master password to which everything else on your computer is linked.
How to update keychain passwords on Mac?
Getting through the keychain password Update process on a Mac can be cumbersome, so take the following steps to make it easier.
1. Use Keychain Access to gain access to your keys. You can usually find it in the Applications folder, but if it's not there, click on the magnifying glass icon in the top-right corner of your screen to look for it.
2. Please click "login" from the sidebar on your left. It should be the first option.
3. You can then change the password for Keychain 'login' by clicking "Edit" at the top of the screen.
4 . Please enter the current password, followed by the new password you wish to change, and then click OK.
5. In the future, when you're prompted for your keychain password, you'll only have to enter your new password.
6. The password you used to access your keychain will need to be reset if you don't know it. Once reset, all the usernames and passwords in your keychain will be erased.
7. Launch the Keychain Access app. If you can't find it there, use the magnifying glass icon on your screen to search for it. If it's not in your Applications folder, it can be found by searching for it using the search bar.
8. To access the Keychain Access preferences, click on the Keychain Access menu in the top left corner of the screen.
9. The username and passwords in your Keychain will be deleted when you click " Reset My Default Keychain."
10. Your Mac should be logged out and logged back in. You should now enter your Mac's user account password when Keychain Access asks you for your password. Hopefully, this will restore Keychain Access to synchronization, and you won't have to enter the password anymore.
It is normal for your password for the login keychain to be the same as your user password (the password you use to log onto the computer). You must enter the keychain's password to unlock it if it differs from your user password.
When you don't provide a keychain password on Mac during login, the keychain auto-locks; if you used a previous password, it's recommended that you enter that. If this does not unlock the keychain, it can be automatically reset.
To reset your default keychain, if you can't remember your previous user password, you need to reset your previous user password. After resetting the default keychain, all passwords in the keychain are deleted, but your login password and the password stored in the keychain are synced. The keychain password is then changed automatically to match your updated password in Users & Groups preferences.