However, one of the main disadvantages is that iCloud Keychain only works on Apple devices. So you can effortlessly go to sites, choose the item you want to buy, then complete the transaction in seconds and without needing to dredge your memory or fill in loads of text boxes first. It doesn’t just fill in passwords for you though: it also enters your logins, emails, credit card numbers, and address details.

It’s all tied to your Apple ID login and password and the Apple devices you have registered for two-factor authentication, plus everything is encrypted, so it should be secure. It helps you to create secure passwords by generating them on your behalf, warns you if you reuse one or if a password is not secure, and, crucially, auto-fills your passwords when needed. ICloud Keychain is Apple’s own password management system and it is built into macOS and iOS. There are lots of password managers available, but you may be wondering if you really need one, as Apple already includes a free one with your Mac.

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