Work with iCloud Keychain
iCloud Keychain, a feature available in macOS, iOS, and iPadOS—sorry, Windows users—allows you to sync a keychain containing passwords, credit card numbers, and other sensitive data across your Apple devices securely via the cloud.
One big benefit of iCloud Keychain is that Safari and other apps on your iOS or iPadOS device can autofill usernames and passwords that you stored in a keychain on your Mac—and vice versa. Another benefit is that once you enter a Wi-Fi password on one device, it syncs to all your other devices, so you don’t have to reenter it numerous times.
iCloud Keychain includes several other capabilities:
A strong password generator built into Safari
The capability to store and enter credit card information ...
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