How to set up passcodes on iPhone, iPad and Mac

Passwords have their place, but knowing how to set them on iPhone, iPad, and Mac will make accessing online services much more secure. Although iOS and macOS will suggest unique and complex passwords when you sign in to websites and apps or seek to make changes, a passkey takes security to another level.

When you generate an access key, two keys are effectively created. One ends up stored on your device and another is stored by the website or app. The one on your device, an iPhone, iPad, or Mac, doesn’t leave that device. But when you sign in later (the access keys use TouchID and FaceID to authorize), the two keys are paired. Once there is a match, they let you in.

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