Keep Your Apple Notes Private : Lock with Face ID or Your Passcode

Easily protect your Apple Notes with a passcode or Face ID; locked notes show a padlock, so your private info stays hidden ...
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iOS 18 Might Finally Let You Lock iPhone Apps With Face ID

I said back in December that I wanted Apple to copy WhatsApp's Face ID security for iMessage. That's just one of the default iPhone apps that require extra protection to improve the user's privacy.