After more than 15 years covering everything Apple, it’s with a heavy heart we announce that we will no longer be publishing new content on iMore and the iMore forums will be closing as of November 1st, 2024.
You can use Doc Vault, it does exactly what you asked for.
It creates a separate area which is protected with an additional pass key (or dot lock security).
It allows to protect any type of file, included is a separate browser that allows to hide the history and it also comes with a tool to...