Apple's iCloud Keychain service supports multiple methods of authenticating additional Macs and iOS devices. Once authenticated, devices can sync keychain data between them. This makes sharing passwords and account information a breeze.
In this section of our guide to setting up additional Macs and iOS devices to use iCloud Keychain, we look at adding Macs using the security code method of authentication.
What You Need
Besides the original security code you created in the Set Up iCloud Keychain on Your Mac guide, you'll also need the SMS-capable phone that you associated with the original iCloud Keychain account.
- On the Mac you're adding the keychain service to, launch System Preferences by selecting System Preferences from the Apple menu, or clicking on its Dock icon.
- In the System Preferences window, click the iCloud preference pane.
- If you haven't set up an iCloud account on this Mac, you'll need to do so before you can continue. Follow the steps in Setting Up an iCloud Account on Your Mac. Once you set up the iCloud account, you can continue from here.
- The iCloud preference pane displays a list of available services; scroll through the list until you find the Keychain item.
- Place a check mark next to the Keychain item.
- In the sheet that drops down, enter your Apple ID password and click the OK button.
- Another drop-down sheet will ask if you wish to enable iCloud Keychain using a request approval method (see page 3), or using the iCloud security code you set up previously. Click the Use Code button.
- A new drop-down sheet will ask for the security code. Enter your iCloud Keychain security code, and click the Next button.
- A verification code will be sent to the phone you set up with iCloud Keychain to receive SMS messages. This code is used to verify that you're authorized to access iCloud Keychain. Check your phone for the SMS message, enter the supplied code, and then click the OK button.
- iCloud Keychain will finish the setup process; when it's done, you'll have access to your iCloud keychain.
You can repeat the process from additional Macs and iOS devices that you use.