Use iCloud Keychain to keep your website and app passkeys and passwords, credit card information, Wi-Fi network information, and other account information up to date across all your approved devices and Mac computers. iCloud Keychain is secured with 256-bit AES encryption during storage and transmission, and its data can’t be read by Apple.
iCloud Keychain can also keep the accounts you use in Mail, Contacts, Calendar, and Messages up to date across all your iPhone and iPad devices and Mac computers.
If you didn’t set up iCloud Keychain when you first set up your iPad, you can do so now.
Go to Settings sent to a trusted phone number. After you authenticate and respond, you must enter the device passcode. iOS, iPadOS, and macOS allow only 10 attempts to authenticate. After several failed attempts, the record is locked and you must contact Apple Support on the Set up iCloud Keychain.