Mac User Guide
- Welcome
- What’s new in macOS Tahoe
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- Intro to Apple Intelligence
- Translate messages and calls
- Create original images with Image Playground
- Create your own emoji with Genmoji
- Use Apple Intelligence with Siri
- Find the right words with Writing Tools
- Summarize notifications and reduce interruptions
- Use ChatGPT with Apple Intelligence
- Apple Intelligence and privacy
- Block access to Apple Intelligence features
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- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos, and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books, and more between devices
- Resources for your Mac
- Resources for your Apple devices
- Copyright and trademarks
Set up iCloud Keychain to autofill information on Mac
iCloud Keychain keeps the website login information and credit card information that you use with autofill in Safari, and your Wi-Fi network information up to date across your Mac, iPhone, and iPad.
iCloud Keychain also stores account settings, so your social media accounts can be added automatically to another Mac when you sign in to your Apple Account on that Mac. For example, Exchange, Google, and other internet accounts you use with Mail, Contacts, Calendar, Reminders, Notes, and Messages can be added automatically.
Everything stored in iCloud Keychain is secure—it’s protected by industry-standard encryption. See the Apple Support article iCloud data security overview. Your iCloud Keychain can’t be set up on another Mac, iPhone, or iPad unless you approve it.
Set up iCloud Keychain on your Mac
Go to the System Settings app
on your Mac.Click your name at the top of the sidebar.
If you don’t see your name, click “Sign in,” enter your Apple Account email address or phone number, then enter your password.
Click iCloud, click Passwords, then turn on “Sync this Mac.”
Follow the onscreen instructions to set up two-factor authentication if you haven’t already.
You must also set up your Mac to require a password before you can use iCloud Keychain.
Approve a new device to use iCloud Keychain
If you use two-factor authentication and have already set up iCloud Keychain on another device, you can easily approve a new device to use your iCloud data. On the new device, when prompted, enter the login password or passcode of a device that already has iCloud Keychain set up.
For information about setting up iCloud Keychain on your iPhone or iPad, see the user guide for iPhone or iPad.
Removing credit card information or account names and passwords in Safari (or with the Passwords app) deletes them from your macOS keychain and from your iCloud Keychain.